A few of crossovers I'd like to see that I haven't been able to find:

- A Harry Potter/Fullmetal Alchemist crossover about a wizard in Amestris. Usually it's the other way around, with the Elrics at Hogwarts.

- A Buffy/Harry Potter crossover about an actual formally trained (i.e. went to Hogwarts/Durmstrang/Beuxbatons) wizard joining the Scoobies (or Angel Investigations), rather than random amateur witches that at best read a few books.

- Sosuke Sagara (Full Metal Panic!) joining the cast of, well, pretty much anything. Like Stargate...

O'Neill: "Oh, for cryin' out loud, fishing is when you sit down with a beer and a fishing rod and just relax. You know, not think about anything..."

Sosuke: "But Colonel, wouldn't it be pointless to fish in your pond as there aren't any fish there?"

O'Neill: ...

Sosuke: "Oh, I see. The point of this exercise is to teach me ambush skills in an urban setting, to see how long I can maintain my alertness while acting perfectly natural and not giving away my intention."