First 20 Callies in the Types of Callie series
http://arr-jim-lad.tumblr.com/tagged/types+of+callie

Zombie survivor Callie, Knight Callie, Partisan Callie, Hogwarts Callie
Spacegirl Callie, Vengeful Angel Callie, Superhero Callie
Sonic Recolour Callie, Kitten Callie, Sunbear Callie, dA OC Callie, Ninja Callie
Baseball Pitcher Callie, Genderswapped Callie, Damsel in Distress Callie, Cheerleader Callie, D&D Nerd Callie
Prehistoric Callie, WWII Pilot Callie, Mage Princess Callie

My personal favourites are the zombie apoc, knight, spacegirl, super hero, pitcher and hogwards ones (:

I have a decent list of Callies I'll draw in the future, but if you have an idea of one I could draw, feel free to let me know!

(I will delete the previous picture of the first six callies so that I won't have doubles in my gallery)