That morph is a combination of an Enchi Pastel and a Pinstripe. He got the name from combining the name of two already existing morphs. A Pastel x Pinstripe is also known as a Lemon Blast, and and Enchi x Spider is also known as a Stinger Bee. Pu the two names together, and he came up with Stinger Blast. To the best of my knowledge, they are the first to produce this designer.