well we have looked at a few sites on the net that guys blow bubbles for homeade airplanes and the make an oven or big BBQ grille to blow the bubbles, soooooo we are in the process of building an oven to do the job , and building the forms to sandwich the plexi-glass and ready to heat and blow , if the oven fails I do know a powder coater with an oven that could heat the plexi before the blow , we are talking about making 2 rings , one with the bubble and one with a "legal" v-style windsheild in case we take it on a cruze , you can buy them from the guys that do the Mcdonalds playland bubbles but there shapes aren't quite what we want so we will give it a shot , don't know until you try.