A small self feeder might work for when you are away. Roxey also has a ball that you can put food in, she thinks it's alot of fun, and eats whenever she wants it.

Dixieland Dancer~Buster Cube~is that the square toy you can put food or treats in? I have seen a couple diffrent ones. I was wondering (if it is the square one) do they like it even though it is square, I didn't think they really would.