For his birthday, Luke received a rock tumbler from Nana. It is not a "toy" rock tumbler, but an actual hobbyist tumbler of a very high quality. The unit holds 6 quarts of rocks!
We started this weekend tumbling our first batch--the rocks that came with the unit. It looked like a mix of quartz, jasper, etc. It is now quietly churning away on my workbench.
Stay tuned for the results!