Depends on the whole situation, but maybe a ragtime piece? You don't have to do much with dynamics. If you perform on a crappy piano, it doesn't matter so much -- It's more plunking out notes than shaping them so much. Steady beat for the audience to follow along with. If you get nervous or something, just play louder.
Entertainer
Maple Leaf Rag
People know those well enough to follow along and be entertained. Popular for teaching pieces. Niche in music history. You'll run across them again sometime most likely.