Here's one of the badges I drew this weekend! Anthrocon was a wonderful experience, and I'm already dreaming of next year's event!
I like this pic because I included the sketch too. What I do for table commissions is pull out an index card to do a preliminary sketch and take notes on the pose and colors and whatever comes out as I discuss the project with the client. They usually go with the original at the end, but some get left behind and I keep them in a drawer with my badge supplies. Usually it's the only memory I have of the badges, as I often forget to grab a pictures of them before they go to their homes.