These are terrific for a warm cup of something and a little treat. Quilted mug rugs measure about 6" x 10": tiny quilts with top, back, and batting. Many contain a little pocket perfect for a tea bag or treat. They are completely washable, but I'd suggest drying them flat.
I've also included cloth coasters in this collection. They are great for water bottles, drinks, and perfect for kids - get them into the habit of using a coaster early.