Ever noticed that a rubber band gets warmer when it’s stretched? The bands also get cooler when allowed to snap back to relaxed length? [Ben Krasnow] noticed, and he built a rubber band cooled ...

Yet one that's been getting a lot of press is truly head-scratching -- and ear scrunching: When you have facial swelling, you ...

Flexible filament like TPU is one option, but [NagyBig] designed a simple bracelet to ask: how about embedding rubber bands or o-rings into the print itself? Embedding objects into prints usually ...