stephan d (USA)
Childrens spillproof juice bottle cap
This idea is a spillproof bottle cap for young children. It replaces the existing cap on off-the-shelf beverages. The bottle with this cap in place will not release its contents unless a vacuume is present in the nossle (by sucking), so the bottle will not leak from being squeezed. A valve opens with the action of this vacuume.

Reward: impress my mother-in-law

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