Magic Water Jug
thingiverse
Take some fun to your kids with that thing. Just fill the jug with water yourself. The jug has a "hidden" space which will keep the water once full on its own. Simply dump out the jug while holding your finger over the hole on the handle, then set down the jug and sprinkle some special powder all over the top - wow! The jug is refilled immediately ! Instructions Built with Solidworks software - I managed to print this model without using any supports (it might mess up the internal workings anyway).
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