Check out this diy idea of making your own leakproof water blob. Using painters plastic, and iron and some duct tape you can make one of the diy water blobs for your backyard. I think all kids would have fun playing on this but I especially think little kids would love it. They could have fun without fear of falling under water in a pool and if yoy ran a sprinkler over it they could slip and slide on it. What a neat way for them to keep cool while playing outdoors. Check it out on Homemade Toast.
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 Click here to read step by step detailed instructions of how to make a Water Blob for safe way for kids to cool down: