Carrom game boards. The American variant of the game with plastic rings. I bought one, then almost immediately another in a slightly different style. I'm planning my first fine woodworking project which will be a carrom board and I'm going to 3d print my own rings.
For those that don't know, most libraries also offer an interlibrary loan option where a book that's not available at your location can be requested and mailed from anywhere in the country. The library pays for the postage. You may have to speak to a librarian to do so.
NOTHING LIKE POURIN' A COLD ONE, AROOOOO!!!