Interesting temporary exhaust fix

On my wife's car, hole appeared in the exhaust pipe between the header and
catalytic converter. The rest of the pipe was in good shape, but one of the
spot welds on the pipe's heat shield had fallen out, leaving a hole big
enough to hear unmuffled exhaust sounds (about 2/3 the size of a BB.)

I don't weld, but I needed it fixed, at least for now. I used a Dremel to
bore out the hole a little, making it round, then I pushed in some "steel"
epoxy putty into the hole a little ways, inserted a stainless steel pop
rivet just big enough to fit in the hole and popped it in.

I'm not sure the epoxy did any good or if it just burned off (couldn't find
any that had a heat rating), but the hole is sealed and after driving at
highway speeds for an hour it's still sealed.

I don't expect it to last very long, but I figured this "tip" might help if
anyone else needs to plug a hole in an emergency. As a temporary fix it
worked like a charm.