Jeremy and Evan's Teacher of the Deaf, Kat, sat down today and made a list of the ASL signs Evan "knows." If you include signs he copies and understands, as opposed to just the ones he makes on his own, it's a decent size list.
Signs Evan has produced on his own (at least once)
Flip (as in "Do you want daddy to flip you over his shoulder?")
Signs Evan has copied
Signs Evan understands, but hasn't made