Back in the day (the 1940's), a young squirrel was taken in and cared for by Mrs Mark Bullis of Washington DC. She named it Tommy Tucker and dressed it in miniature clothing (the crazy old bat). Life magazine did a feature on it, and there are more photographs at their site here. I know you shouldn't treat animals like that, but you have to admit he looks pretty cute asleep on his little chair. I want to get one now.