Here's a fun indoor activity to try, since this arctic blast is keeping all of us inside.

D.I.Y. Watercolor designer mug using nail polish.

It's pretty simple. All you need is nail polish, a tub of warm water, tooth pick and mug.

* On a side note, the mug will have to be hand washed in order to protect the design.

I'm wondering if you couldn't spray a clear coat on them to protect and keep the design longer? I bet it couldn't hurt.

Also, if you mess up with your design you can use nail polish remover to take it off the mug to start again.