A wooden frame with chicken wire is recommended. If you choose to have a float with moving parts, make sure your parts are strong enough to last and function for the duration of the parade route. You may use strings and pulleys, motors, hydraulics or anything else within reason. If you have any questions concerning what is legal, consult the parade committee. Covering the float is the most time consuming part of construction.
Most coverings are acceptable.
Pomping, paper mache, and painting are all effective ways to cover the float. A mixture of flour and water can be used as glue, and hairspray can be used for final staying power. The safety of your float is also important. The float should be covered and supervised to protect against vandals.