Seeing as Lily is way too little to wield a knife (hell, we clearly weren't skilled enough either and broke both of our pumpkin carvers), we finally introduced her to paint and a brush. It was a hit, to say the least!
Art and I carved ours, though there might have been a bit more details had we not broken the aforementioned knives.
It didn't matter to Lily though. She was fascinated with them one we lit the candles. It certainly doesn't hurt that she's fascinated by candles and thinks they're all "happy birthday to you" and wants to blow them out :P