Create a belly cast without putting Vaseline on first. I had to stand under the running shower to get it off, but it didn't soften up so it had to be puled off, ripping out nearly every hair with it. And the best part? We didn't have enough plaster, so we have to order a new kit and start all over, so the effort was all in vain. I am red, and feel like I've been sunburned.