Handwarming Mugs Research

 

I have always loved the idea of handwarming mugs. I think that they make such thoughtful and cozy gifts. I have done a lot of research on them. Typically, people throw the mug, cut a slit in the mug, and add a slab to the inside. However, I have always thought this was a little messy looking. I found a video where there is no cutting involved. A slab is added to the outside instead. I can not wait to try this. It is just in time for the holidays!