I am relatively new to glass fusing, I created a project which I really love, but there is one item on the piece that does not look right. Is there any way to remove something once it has been tack fused to a piece? There are several fish tack fused to a background piece of glass. One of the fish looks weird and the piece would be so beautiful if I could somehow get it off and replace it with another. Is this even remotely possible?