If you enjoyed Derp (above), you may care to peruse the following photoshopped variants:

(a) the mildly disturbing Derp Derp

(b) the frankly terrifying and non-unseeable Herp Derp.

httpv://www.youtube.com/watch?v=9nH8OC6a618&feature=player_embedded#!

Adorable smiling dog gives cheesy grins on demand (Gawker TV)