1 cp baking soda, 1/4 cp of water & adjust from there, didn't even measure our second batch You want it moldable but not so wet it won't hold its shape-Roll around some surprises-small toys, party favors, coins--dry overnight--When hard, fill clear bowl with vinegar (we actually mixed with water) & drop them in-kids really liked it, when they realized there were surprises in there they LOVED it.
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