Apparently, there is a recipe for everything. I wanted to quickly use up some eggs this weekend, noticed that I also had a box of chocolate cake mix and can of pumpkin. So I googled chocolate cake mix pumpkin and came up with this recipe:
Same as linked recipe except I added an egg, doubled the oil, and added two teaspoons of pumpkin pie mix, and cooked with paper muffin liners for 20 minutes, and didn't frost. Oh, and my cake mix was dark chocolate fudge.
They came out very moist and light and very chocolate-y, but not too sweet. They were not at all pumpkin-y, although you could smell the spices.