I was just in an event that sold 3 anywhere mulligans for $25. Just one shot....not a mulligan for the whole group, not 4 shots.
All the staff on the course was selling them, so you could buy more on the course ...out group ended up buying 6 total.
Advertise or display before the round the items in the Chinese auction. I only bot 10 tickets, but there were two items I was really interested in winning,. If I had known, I would have bought more during the round!