I had this miniature finished a few weeks ago - for Halloween, in fact. My son, who is a big Nightmare Before Christmas fan, nicknamed him Jack and it stuck. He's been the big baddy in a couple of Open Combat games.
The mummies were painted mostly by son, who is six. As I have stated before, the real appeal of the Bones kickstarter's is cheap miniatures for my son and daughter to paint at a low entry price. And for a mummy, it was a good basic lesson. Paint it skeleton white, sepia wash and drybrush the highlights.