I'd like to do a cannon (as in "the human cannon ball") and make it lifesize so that people can actually use it as a photo op. Sono tubes that size are not stocked in my area (and the cost/shipping for an online purchase is prohibitive). I've thought about papermache or monster mudded chicken wire, but I don't think I'd be able to get a nice smooth look from either of those. Any ideas? It will only be outside a couple of days each year so it doesn't have to be weather resistant but it will need to be strong enough to hold up to people climbing in and out of it. PVC would be ideal but I don't think they make it that big. I'm also toying with the idea of splitting it down the middle (long ways) with hinges to make getting in and out of it easier (possibly adding some fog, and maybe a removable burned corpse for when it's not being used for photos). I just can't seem to settle on a good material for the barrel.