BrewStaff Warlock's Chalice

It's the BrewStaff Warlock's Chalice staff topper! Drink not from the rim, Wizards! This part is used in conjunction with a rubber O-ring (I use standard size 137, YMMV) Insert the O-ring into the groove on the bottom, lube it a little with a wet thumb or beer, then pop it on top of a can. If you are the Wisest Wizard, you owe it to yourself to flaunt it with the Warlock's Chalice! You may want to seal your print with a spray-on sealant before you try it to help keep it clean.

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O-Ring Sourcing:
http://www.mcmaster.com/#2418t156/=wcm3z1