I've put together an app for the HP TouchPad called "Halloween Artist". It was fun to develop, and it's even more fun to play with. It went from being an idea I was pretty sure I wouldn't have time for a week or two ago, to being available in the App Catalog as of yesterday.
Kids in particular love this thing. The idea is very simple: draw face shapes on a pumpkin, hit a "carve" button, and boom, your design gets cut into the pumpkin and has a nice flickering candle glow behind it. Undo if you mess up, save a JPEG file if you like the result.
There's a little demonstration here:
...and a young friend of mine doing some beta testing here:
This is, I guess, just the latest in my established line of cute Halloween projects. :^)