Make one yourself
Lead casting is not hard (melt the lead 'outside' to avoid the toxic
fumes) A coleman stove will be adequate. use and old cooking pot
(discard the pot when done). Get your lead from an automotive tire
store - buy the used balance weights.
Make a mold using an 'instant concrete mix ', use ;just enough' water
to make a very dry mix, then put in an oven to completely dry the mold
- the mold has to be *completely dry" when pouring in molten metal..
Use solid stainless eye screws for the attachments.'through' the
casting.


.com, Bob
wrote:

also availible from a search he

use a "cannon ball" used in west coast salmon/tuna troll fishery. lead
weight from 20-40 pounds. Cheep compared to "marine kellets"
Bob