Take this shape, minimize thermal conductivity to its surroundings but enable it to stand safely on a flat surface, and what you have got is a stemmed wine glass.
So put a stem on it:
http://www.nisbets.co.uk/Arcoroc-Excalibur-Grand-Cuvee-Glass...
If you want a glass that doesn't tip over easily, this isn't so great.
Theory versus practice. The best entrepreneurs are able to see past the theory and grapple with practical considerations.