To make these gorgeous DIY Marble Mugs, all you need to do is pour nail polish into a container of warm water and dip your mug inside to create this cool design. It takes a little practice (and patience) to get the technique down.
How to Polish Rocks With a Dremel Drill. Rock polishing machines are noisy and tumble rocks together to create a smooth and shiny surface. You can create similar results without this machine. A Dremel tool with a grinding attachment offers one solution.