Rodney McKay is MacGyver's son.

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Immortal Purity Test

Somebody makes an internet purity test based on what they've heard in an Immortal drinking game similar to "I Never" (last one to die of alcohol poisoning wins). It's posted on a forum used by Immortals (the FAQ claims they're "roleplayers" who meet IRL. There are a few members who have no idea that Immortals are real and not just pretend; they're usually easy to spot, but one guy is mortal and nobody else knows it), including Amanda and Methos. They're amused enough by it that they're having fun with it in the bar, and manage to drag Richie and Joe into it (both of them are very pure), and a reluctant Duncan (he's done more, but he's still pretty pure). Amanda isn't as unpure as you'd think, and Methos is down at like 2% plus a decimal because there are just that many items. Duncan says there must not be anybody who's 0% pure, but Methos says he knows somebody.

Sample items:
been burned at the stake
had a slave
been a slave
successfully pretended to be the opposite sex
used the opposite sex as a long-term identity

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Idea: Mime Army

The Mime Army. Think about it.

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A form of magic which is entirely dependent on tattoos, hidden in the real world.

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Bests and Worsts

Every year the Atlantis expedition held a vote for the bests and worsts: best culture encountered, worst alien life form, best Pegasus food. Although there was no requirement to vote for bests and worsts that they'd encountered in that year, most of the winners were encountered in the year they were voted for.

The first year, the Ancient Baby Machine won Worst Technology.

Every subsequent year, it won Best Technology.

The Best-Laid Plans of Mice and Men

Atlantis had originally been planned so that it could become a colony, if contact wasn't reestablished...technically. But nobody had planned for a massive baby boom only nine months in. Most of the expedition members were from small families and, if they had been married in the past, they were now divorced. None of them had children that they had raised. So, few of them were prepared to have children, especially when they learned about them so late in the term. The expedition contained a few people who had more experience than babysitting as teenagers, but that wasn't enough when literally every member of the expedition was about to become a parent for the first time.

Even with extensive planning sessions- suddenly they had to set up child care that ran 28/6 and accounted for crises and missions and the fact that any one of them could die unexpectedly, the universe being what it was- the first few months were nothing less than chaos as everybody got used to their new children and dealt with the usual crises with a predictable lack of sleep.

Just when things were calming down, they found out that the Wraith were coming to attack Atlantis.

Murphy

Xander didn't allow himself to hope for a better life this time around. Despite the fact that all indications pointed to his parents being good parents (and by that point, he'd dealt with enough parents to know the good ones from the bad), or perhaps because of it, he didn't allow himself the slightest glimmer of hope. Because in his experience, Murphy's Law always applied, and if something went right it was just a setup to make the sucker punch hurt that much worse.

He didn't allow himself to hope. Maybe that's why it hurt so much when the inevitable happened.

Forced Meditations

He doesn't think he's ever experienced something quite so boring as being in the body of an infant. He can't do anything, and for somebody who hadn't voluntarily slowed down since he was in high school that was possibly the worst thing that could happen to him. He'd been unable to move once, a few years before he'd died and been reincarnated, but it hadn't been like this. Then, everybody had known he was still in the shell of his body, for all that it couldn't move, and had made a point to come by and keep him from being too bored, even if he wasn't always precisely entertained. He'd had the papers read to him on a regular basis, public news as well as Saucy news; and books, some of which he wouldn't have read on his own (really, just because Faith was learning Python thanks to the urgings of somebody-or-other in MagiTech didn't mean she had to share). He'd gotten occasional music from his personal music collection, so it wasn't anything horrible. He'd gotten constant updates on the usual crises- because when wasn't there a crisis?

And even though the news and updates-on-crises made Xander realize that he really needed someone competent to be his second in command, ready to take over at a moment's notice, and he was horrified at not being able to do a thing about any of the crises, and certain people took entirely too much pleasure at him being a captive audience, at least they realized he was in there, that he was aware and sane and not used to dealing with boredom. Nobody realized those things about babies.

It was going to be a long, boring time until he was mobile again, and he had nothing to do during it but think.

Lost in Translation

Watchers' Latin was possibly the only language ever spoken that had such an extensive magical vocabulary. It had been the lingua franca of the magical community for centuries at the least; nearly every legitimate magical book was written in Watchers' Latin. And if the people who needed the vocabulary would only be talking about it in that much depth with other people who knew Watchers' Latin, what use would they have for translating calormagia (the feeling of being near magic) or frigusmagia (the feeling of not being near magic) or any of hundreds of words used by magic users when talking shop?

Amateurs and Professionals

Over the course of his first life, Xander had become something of a connoisseur of magic. He'd seen it all; from the first fumbling efforts to float a pencil to the false impressiveness of flashy spells to the true mastery of minimum effort for maximum effect. He'd seen witches study theory for years before they tried their first spell. He'd seen scholars do things that whole covens working together couldn't, because they knew theory well enough to change one minor thing and set off a chain reaction. They'd been called the Philosophers, after Archimedes and his saying "Give me a lever long enough and a fulcrum on which to place it, and I shall move the world."

Compared to them, no person in the wizarding world was more than a rank amateur, skilled enough to dazzle those who hadn't seen anything more impressive than sleight of hand but unimpressive to those who knew what real skill looked like.

FRC + Psych

Tim and Bernard from the FRC series go to Santa Barbara to promote Bernard's latest book, which he leaned heavily on Tim and Dick to get realistic since it's about a detective. Lassiter heavily fangirls him because it's realistic.

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Science, and Other Cults

Atlantis is abandoned/lost/destroyed, and the expedition members return to Earth. Since few of them have strong ties to Earth, or people or places on it, they're mostly at a loss for what to do, and they can't all stay at the SGC. They end up moving to a small town/rural area, where they just buy a large tract of land and build their own buildings on it, built to their specifications for doing the jobs they want to do. And then they clash with the locals, especially the school(s) because they had kids while they were in Atlantis: their kids know it all already, they get in fights with the town kids, the adults send whoever's available to any sort of thing the school needs parents at rather than sending the parents of the relevent kids like they're supposed to. And the military who stayed in the military stop by when they have leave, and occasionally official-looking people come by, and the locals are totally baffled. They think it's a cult for a number of reasons.

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Echo of a Silenced Sound

Summary: It doesn't matter so much that you're a clone if the original isn't around.

AU from Fragile Balance. For whatever reason, by the end of the episode mini!Jack exists but original Jack doesn't. Either mini!Jack stays at the SGC, or SG-1 stays in contact with him.

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Family

Family on Earth wasn't anything like family on Atlantis. On Atlantis, family was biological family and team family and work family, and those-who-risk-their-lives-for-you family, so she could claim all of Atlantis as family, and the Athosians and those Satedans who were still living as distant family. On Earth, though, family was only biological family, culled to merely blood relations, and those connections thinned until blood was like water in comparison to what family meant on Atlantis.