Dear Chris, A double boiler should do the trick. I will emphasize
that under no circumstances should you get it on yourself. In fact,
have a container of cold water handy for that possibility. The pitch
I favor, Northwest Pitchworks if memory serves, comes in milk
cartons. The technique I learned involves an ax or a sledgehammer.
One can also soften pitch with a hot air gun, the type used for
removing wall paper. I prefer that to a torch for rearranging my
bowl. The other trick I’ll share is that quick setting cement with
some indentations to hold the pitch better than pitch alone. Just
pour in enough to fill half the bowl. Use a few spacers, candles and
carrots will both work, When the cement sets and you remove the
spacers you have a nice place for the pitch to hang on. The
heaviness of the cement makes the bowl more stable and cement costs
much less than pitch.
Best of Luck,