To serve, mix ice cream with peppermint extract and green food coloring in a punch bowl. Very carefully add peppermint extract - one drop at a time - a little goes a long way.
Add 7-Up to ice cream mixture.
NOTE: You can keep adding 7-Up to the punch if you need more volume.
Peppermint Float Punch Recipe: https://whatscookingamerica.net/beverage/peppermintpunch.htm