Initial tests were positive, with the tumbler successfully polishing some cast brass parts using crushed walnut shells. [VegOilGuy] is still looking for a more abrasive media to use for initial ...

If you’re reading Hackaday, there’s a good chance you had a rock tumbler in your younger days. Hell, we’d put odds on a few of you having one rumbling away in the background as you read this.

We've ranked the best rock tumblers for beginners, kids, adults and professionals who love geology and are on the hunt for sea glass, agates and more The best rock tumblers make your rocks look ...

YETI Ramblers are known for their magnetic slide lids that keep everything spill-proof, whether you’re on a hike or staying ...

Getty Images Forget a purse, just use your water bottle. Stanley tumblers are all the rage, and all the coolest people you know probably have at least one — but has the trend gone too far?

When you enjoy making art with top-tier epoxy resin, you understand its importance in decorating your tumblers ... In addition, the epoxy has a rock-hard finish that is scratch-resistant and ...

Parents and big siblings might have their Stanleys, but babies and toddlers are about to have their own tote-everywhere tumbler. Infantino just launched a first-to-market tumbler specifically ...

The whimsical jack o' lanterns make another welcome appearance on a multicolor, orange-rimmed 16-ounce tumbler. These are only $14.95, and each one has a patchwork of colorful squares filled with ...