I just finished helping the munchkins carve pumpkins and wanted to pass along a tip. I made my kid-sized carvers by taking a piece of hardwood dowel, cutting a slit it in and then seating 12-14 tooth HSS jigsaw blades in the dowel. I made four - one for each kid and the adults (I may fall closer to the kids). At any rate, I epoxied the blade into the dowel and then wrapped the heck out of them with electrical tape. We're on year two with the first set no problem. Beats buying the specialty pumpkin carver things at the store as I, like many of you, have a ton of HSS jigsaw blades lying around. My total investment was practically nothing as I just used odds and ends in the shop including cheap imported no-name blades that get dull if you look at them wrong but work just fine on pumpkins :-).
Have fun with your families this Halloween.
--George