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 ...

Learn more › If you’re interested in increasing your daily hydration without making frequent trips to the kitchen, your best bet is an insulated tumbler. These vessels, which typically range ...

That’s why having a sharpener, like the Tumbler Knife Sharpener, is so valuable. It can make sharpening your cooking knives at home safe, easy and approachable, especially if you’re not ...

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 ...

The best-selling Owala Stainless Steel Tumbler is almost 20% off leading up to Amazon Prime Day. You can get it discounted for a limited time. The viral tumbler is “durable, leakproof ...

Today, Stanley released its Barbie Dream Collection, an eight-tumbler set that is every Barbie fan’s dream. The collection celebrates 65 wonderful years of Barbie. Stanley has been teasing about ...

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?

Green Day’s partnership with Keurig doesn’t mean punk is dead. Just that the age-old practice of commodifying rebellion is ...

Update: This tumbler sold out faster than you can say “This Is Halloween” and we’re waiting to find out if the Disney Store will restock it. If you’re still looking to get your ...