The way I was taught how to make the pitch bowl is using an old
bowling ball. You cut it in half, and use the pitch on the cut side
with some type of craddle on the other side. Or you could use the
pitch on the rounded part depending what your working on. That would
certainly give you the weight, and you wouldn’t need lots of pitch to
fill the bowl.
Just a thought.
Zoe Hardisty