I've made my grandson, he's 16, a quilt-flying bats, its red and black and on the back he wants black and gold with his school name on it, also he wants it in silky material, I bought polyester because it was silky and shiney, but now Iv'e learned that it is one of the most raveling pieces of material there is. My question is if I sewed it together, I'm thinking just big 8" squares or something, and then used the serger on it with out cutting it, because mine is only a 3 thread surger. Would that hold it or would they still unravely and be a total mess in a couple of years????