Here is a great reusable (GREEN) solution.  

This product is made from ceramic and silicone.

MICROWAVE and DISHWASHER SAFE

Cowboy Up Double Wall Insulated Coffee Mug $9.99	Coffe Double Wall Insulated Coffee Mug $9.99	Enjoy Life Double Wall Coffee Cup $9.99	Camo Double Wall Insulated Coffee Mug $9.99
Funky Fish Double Wall Ceramic Coffee Cup $9.99