Lead ingots, $2.00 per pound. These are made from sailboat ballast. Great for casting fishing weights, ballast, race car weights or counter weights. I have not checked their hardness or mixed in any alloys. Any amount from 1 to 400+ pounds available. I have 1 lb ingots, 5 and 10 lb kart weights, and larger sizes as well. I have over 15 different size molds I can use.
Pictured are some of the weights I've made for carts and race cars. Pictured are two 12lb cart weights, a round 100 lb "parachute" weight, a 60 lb weight made in a valve cover, and a 90 lb rectangular weight. All have a 1/2" hole for mounting.
I have also filled 2" x 3" rectangular steel to be welded or bolted on cars. A 4' section weighs a little over 100 lbs.