It Was A Happy Accident.
Well in this case, it was serendipitous. You see, the inventor of DragonSkin has been on a quest for the last several years to create the ultimate bio-plastic. He was successful in his quest, but along the way, throughout his tinkering and several close-call eyebrow singeing moments, he noticed a transparent slag left behind in his beakers. The inner pyro begged to see what would happen when an open flame kissed the slag, upon doing so, an amazing rapid deflagration reaction took place leaving behind no residue.
Upon further investigation he realized that the modern entertainment magic industry has unknowingly been waiting for an invention like this. Enter DragonSkin, a transparent & tintable flash bio-plastic that is just as much structurally flexible as it is industry flexible, a perfect pyrotechnic tool for the amateur and the professional.