My old guitar building tutor used to say that almost any mistake could become an opportunity to practice some inlay or marquetry - this is possibly rescueable.
Caveat this with a big "if it was me"... Once you cut the guitar shape out (which you may as well do) you could maybe route a channel around the whole of the outside of the guitar, along that glue join but only a few mm deep. You might be able to then bend / ram a contrasting bit of binding wood or plastic in there. You'd only struggle to bend it around the horns, but heat will help there.
You'd end up with a stripe around the outside, which might be cool. It sounds doable in my head, obviously not sure about it in real life.
My old guitar building tutor used to say that almost any mistake could become an opportunity to practice some inlay or marquetry - this is possibly rescueable.
Caveat this with a big "if it was me"... Once you cut the guitar shape out (which you may as well do) you could maybe route a channel around the whole of the outside of the guitar, along that glue join but only a few mm deep. You might be able to then bend / ram a contrasting bit of binding wood or plastic in there. You'd only struggle to bend it around the horns, but heat will help there.
You'd end up with a stripe around the outside, which might be cool. It sounds doable in my head, obviously not sure about it in real life.