I was considering this, as a direction once I finish my current commissions:
I seem to be more and more interested in doing sessions with someone paying per drawing. I enjoy the attention to the art and someone seeing their requests come to life, then saving each sketch and sending it to the person.
I've seen this around FA, Wolfblade does it, calling it an "artslave session" or something. I was thinking, per hour charge maybe? Or what about paying per sketch?

Give me some feedback, here, folks.

Damian