I dont think the question should be "what have I fixed with JB weld", it should be "what haven't I fixed with Jb weld" :)

Short of fixing clear glass that you need to see through, it'll do it, your only limited by your imagination/desperation! :)

Acraglas
 

About the only time I don't use JB weld is when it involves wood. Then I use Brownell's Acraglas. I've repaired several cracked/split stocks with it making a near invisible repair that has held up practically forever. It's another good slow curing epoxy.

Rev