I can turn my ipod touch into a mirror, but I won't say how.

Use a webcam if possible. If not, you can probably actually just put your screen on sleep and see your reflection on the screen :)

I believe I have just solved your problem:

http://www.google.com/imgres?um=1&hl=en&sa=N&biw=1...

Btw, that question has been asked before, multiple times...

Use a webcam but don't put it on the internet