Balloon inflation machine.
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Previously:
https://www.homemadetools.net/forum/...115#post120767
https://www.homemadetools.net/forum/...397#post116793
https://www.homemadetools.net/forum/...7968#post86544
https://www.homemadetools.net/forum/...059#post134185
https://www.homemadetools.net/forum/...289#post138756