In this instructable you will design a pattern and sew one cozy. The pattern can be reused because pints of ice cream are pretty much standardized.
These instructions would also work for making a cozy for to-go coffee cups. Just use a cardboard coffee cup instead of a pint of ice cream to make the pattern. You can use your own fabric cozy and skip the cardboard sleeves at the coffee shop - save the trees!
Step 1: Materials List
Scissors (and a rotary cutter if you have one)
Step 3: Trace the Cozy
Leave some room at the top and bottom. You don't want it right to the top because it'll get ice cream on it every time you eat and you don't want it right to the bottom because if you sew it too tightly, the cozy won't slip all the way onto the pint.