don't scrap them :] keep going until you're proud of it and wanna keep it forever...
on a side note, im building a mirrored guitar too. Its alittle trickier than what you did, because its an SG with flat sides. I've ended up routing an SG shape into the flat top, and created a template for the mirror acrylic with that, so the mirror is flush to the wood.
on a second side note, someone earlier said that they would like a textured mirror finish, before realising it was just the ceiling being reflected. that kind of texture can be made really easily; brush a thin layer of paint thinners over the back of the acrylic, and the miriror will start to bubble. Once its bubbled enough for your taste, get read with a shower and use a weak jet to wash away the thinners - voilla!
good luck :]