Wine Cork Trivets. I make these all the time. The link is actually to a blog I used to do mostly for family and friends.
Make a Recycled Wine Cork Trivet
Wine Cork Trivet #DIY #Cheap Project Tutorial
DIY wine cork trivet
Cork Trivet Tutorial- Felt, hot glue and corks.
DIY wine cork trivets!
Wine Cork Trivet - 8 1/2 in. x 8 1/2 in. Made to order Supports on bottom made with champagne corks Wood frame painted with 1000 degree paint: More
Make a wine cork trivet any shape you want in just a few easy steps. Cut the corks in half then sand, paint and glue. Done!
Have 80 spare wine corks? DIY wine cork trivets.
Wine Cork Herringbone, I'm making these as coasters.