Where can I find a small camecorder that I could very easily hide and is light,like a spy camera or something?

Haha, so I know this question is kind of juvenile but do you know where I can find a small camecorder that I could easily hide in clothes or something? I want to take one to school one day and hide it in my shirt/ purse/ elsewhere because I think it could make for a fun youtube video. Any ideas where I might find something like this? Thanks!