I too made my own "Bubba Pucks"... peice of 8" aluminum, 1/2" thick x 2 1/2" wide, cut 3 pucks with a 2 1/4" hole saw.... yeah, that took forever, a little dressing up on the grinder and polishing wheel. Total cost $10. Would have actually bought them except for $28 for the pucks and $24 to ship, all US dollars. Seemed a little exspensive. You can actually buy 2 1/4" aluminun round rod and just slice them off, but it's about $60 a foot.