Notes:

I don't know how used this pun is, or whether this image belongs in the right gallery. Sorry, I'm new here. Also, I'm an amateur at combining images.

Ritsu image source: http://images2.fanpop.com/image/photos/11600000/K-on-Icon-k-on-11635864-128-128.jpg
Pachirisu image source: http://cdn.bulbagarden.net/upload/thumb/f/f4/417Pachirisu.png