I've made one myself. Securing the Thermos is a challenge, but it is possible. I bought two from some small online store in Canada a year ago. There was also someone selling them in India, IIRC, and a vendor in New York. Decals you can buy on eBay - there's apparently a seller that specializes in selling vinyl decals from Star Trek and other franchises. The recipe is simple:
- Get rid of the Thermos logo (surprisingly, the weird Internet advice to rub it off with sugar turns out to be 100% correct);
