Neat puzzle, thanks :)
I like puzzles a lot, here is an old one which I haven't solved yet! Let me know if you did, good luck!
_____________________
( where are the cows? )
---------------------
o ^__^
P̃ o (oo)\_______
/|\ (__)\ )\/\
!\ U ||----w |
/ L || ||
http://scullucs.com/wac