[Little things. Not necessarily useless things. Flick a switch you can't reach. Distract somebody with an itch someplace they can't reach. You could probably pry a nail out of a crate with one. You could set a very small fire - which you'd want to make sure wouldn't turn into a not very small fire, since you can't escape at the moment. Anything you could do by yourself in five to ten minutes without magic, you can probably do it with a triangle instantaneously - with exceptions, like, I don't think triangles can talk. They'll heal little bruises and scratches.]