I've played around with a bunch of ideas - buying a collapsible bathtub, using a kiddie pool or a watering trough for farm animals, and my latest concept is to essentially make a giant sandbag. I've considered using removable caulk and just squaring off the shower, but I'm not sure about how watertight that would be. The dimensions of whatever I make/buy need to be within a 55" square, and I'd ideally like to keep the materials below $125. Please help me come up with something awesome!
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