Noticed this in a pet store the other day. For those looking for something big enough to play in, but more portable than a bathtub, this fully portable pet tub might be what you're looking for. I've also noticed that you can get clay traps to attach to your houseold drainage, designed to prevent it from blocking your drains - could be very handy to have if you're hardcore in the clay. (Extra pics added because, well, nobody's going to even look at it otherwise, right? )