No matter how carefully you cover the walls and floor of the room you do this in with plastic, some water is going to get onto the walls and floor. If you do this in a room with a hardwood floor and plaster walls, you are going to destroy the room. The ideal place to this would be outside on a driveway during a hot summer day. Preparing the Venue First, cover the walls and floor with plastic sheeting. The plastic should be heavy-gauge.
Plastic sheeting sold for use as a painting drop cloth works well.
The party area should not be any larger than about 15' by 15'. If it is larger, you can put some folding tables on their sides to barricade off a party area, and cover them with plastic sheeting as well. If your venue is outside, you can surround the entire party area with folding tables. You don't want your guests to slip and hurt themselves. A snow shovel A crew of four people, dedicated to foam-making and cleaning The Process Put the kiddie pool on the floor inside the party area.