I bought a little gadget from www.walmart.com and picked it up last week at the store. It is the Nostalgia Electrics JFD-100 Donut Holes Maker. Yes, I made cake balls. It comes with a little injector so you can fill them.
I used a cup of sugar free chocolate cake mix and just added a 1/2 a cup of diet mountain dew. They baked for 6 minutes. :) As you can see it cooks 7 at a time and it used all of the cake batter I mixed up.
These are pretty good sized cake balls.
You can make donuts, muffins, brownie bites, and of course cake balls. :)
YUM. I had to try one. :)