Voice Exercises?

[The Shoe Fairy]

Hey guys, I've been practising some toungue twisters and such but I am in need for a new set of voice exercises, ideally with puppetry in mind. I think that this thread would be a a good place to collate such exercises under one banner. Any help from you lot is greatly appreciated!

 

[Princeton]

This will sound really stupid, but when I do vocal warm-ups for theater, I do pigeon trills. They're great for exercising the muscles in your tongue, as well as your upper vocal registry.