I think a group chat style payment feature on Mutiny would be useful.

An invoice is created, anyone who pays it is added to the group chat; then either determined by the creator of the invoice or by vote, a payment is distributed.

For example, 5 buddies each want to bet 10k sats on a disc golf round, winner take all, second place gets their money back. They all are sent a invoice to pay, creating the group chat on Mutiny. After the disc golf round, the payment distribution is made to the winner and second place.

My pals are always betting on small shit and we would use this almost everyday.