I love wool yarn as a to go cup coffee cozy. They are pretty and soft, and will repel liquids long enough to get wiped off. As they are felted, they can also be hand washed without worry of shrinking!

Now live and available for purchase 🙂 These will also fit many sizes of reusable travel mugs if you want to make them look more fun. 

https://www.etsy.com/shop/LambandEweCrafts