I know there are people out there looking for good ceramic travel mugs with silicone lids; I know because I was one of them.
I don’t usually put my coffee in the microwave but every now and then I do need to (or want to).
Ceramic mugs are also far more resilient in terms of washing. You can almost always get a ceramic mug in the dishwasher and the silicone is going to fare a lot better than hard plastic. It won’t taste as bad, feel as bad, and it’s just as safe for the dishwasher ad the ceramic mug itself.
There are some good options out there in this product category although most will not be nearly as thermally insulated as some of the best travel mugs on the market.
Here are the ceramic mugs with lids that I looked at closely while I was shopping around.
Pfaltzgraff Ceramic Mug with Silicone Lid, 14-Ounce, NileMaxam® 16oz Ceramic Mug Silicone LidLiquid Logic Commuter Single Wall Ceramic Tumbler with Silicone Sleeve and Lid (16-Ounce, White)DCIGLASSEN (Black) Double Walled Heatproof Glass (Hand Made) Travel Mug with Silicone Grip and lid- Larger capacity 425 ml, 15 fl. oz capacity
The best travel mugs of 2014 can be found here for comparison.