[Callers] house party squares

I'm wondering if anyone has any squares that work well for house parties? Background: I've called contras a good bit, primarily at swarthmore college, and sometimes find myself in a situation where there are people who want to dance, good music, and space for a square but not a contra. Generally the dancers are more familiar with contra dance than square dance, perhaps even people who sit out squares when they're called at the weekly dances. When this has happened to me, I've ended up just trying to call something, making it up as I go, which has worked ok, but not really very well. I can generally keep them dancing and keep calling at the right times, but the resulting dance isn't usually very interesting. So I was thinking that the best solution would be to memorize a few suitable square dances. Thinking about what suitable means. Any standard contra figure is ok. Nothing that I would have to walk through (simple is better than boring). Nothing that is too picky about the music (singing squares). Does anyone have suggestions? Jeff