Suggest themes for our next fabric design contest?

I'm seeking theme suggestions for this week's fabric of the week contest (which will go out tomorrow morning). As you may have noticed, we've had a LOT of submissions for the last two themes (Christmas and Halloween). That makes it really hard to get the contest together each week, so --  in order to give ourselves a bit of a breather -- this time I'm looking for a really narrow theme that will motivate only a small number of designers to tackle between Thursday and the deadline on Monday. Kim suggested acorns (too easy) and I countered with 'healthcare reform' or 'fingernails' (too abstract and gross, respectively). Any ideas from you folks before I pull together the weekly email tonight?