I couldn’t find anything at Home Depot that I thought would work. I popped the cymbal seat off of my 80’s Slingerland Magnum hi hat (the Magnum barely slides up and down and weighs about 20 lbs). The plastic sleeve was about 1/32” to tight. I subjected the underside to my heatgun and, voila, she fits ‘Like a Glove.’
Good ol' American ingenuity! Way to go, Josh!
-Mark