Updated commission examples and prices! All prices in USD, and no, I don't do "Paypal taxes".

Chibis: $15 flat, $20 shaded. Per character. Couples, triples OK.
Pixels: $20.  100x100 pixel icons. +$5 for small animations.
Headshots/Busts, painted: $25 per head
Waist-up painted: $35 per body
Fullbody painted: $70+, per character, +$10 for every hour for backgrounds
Fullbody flat: $35 per character, +$5 for a set of (full sized) wings, or highly detailed costumes. +10 for simple/cel shading
Colored Sketches: $45 per image. Sketchy lines, bit of a setting, painty colors and shading.