TumblerRing (TM) for MRRF 2019
thingiverse
A must-have accessory for the Midwest RepRap Festival 2019 is a TumblerRing(TM). Simply slip this onto your favorite 20oz tumbler, whether it's a Yeti or another brand, and enjoy a firmer grasp on your drink. Consider printing one to bring along with you, or I'll be handing some out at MRRF 2019 if you're not lucky enough to get yours printed in time.
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