Snowboard practice on the trampoline?

The other guy had a good answer but I wanted to add something. I make a board from a skate deck, old shoes and duct tape to practice. It doesn't feel exactly like a real snowboard, but gives you the feel of spinning better. One thing too for a real board is you could tape them up with duct tape, or if you've got an old board thats not real small just take a file and round the edges off so they don't cut the trampoline.