Running bunco for 20
For 20 players you will need 5 tables, 15 dice (three a table), a bell for the head table, and 5 sheets of paper for the score cards (four to a page).
This is a mixer chart: instead of winners moving to the head table, everyone follows the chart so you play with as many different people as possible. Partners sit across. Roll for 21 as usual; when the head table calls the round, mark a win or loss and any buncos on your card and find your next seat.
Each score card lists that player's table, partner and opponents for every round. Want names on them, a different number of rounds or a fresh shuffle? Open this chart in the planner.