Rock Tumbler Comparison - National Geographic Hobby vs. Professional
34:07
National Geographic Tumbler Reviewed by Experienced Rock Tumbler
43:18
Entry Level Rock Tumbler Roll-off.
16:37
I made a Copper Ice Press that Turns Ice into SPHERES - Lets try DRY ICE!
20:04
I Put Marbles in a Rock Tumbler & Something Weird Happened! Then I Give Them to YOU!
38:41
How to Get a Great Shine from a National Geographic Tumbler
18:31
The Results: Can you use sand to tumble rocks?
27:44
How many plants do you need to breathe? TESTED
18:48