This list is just an example of materials you can use. Be creative with your selection :)
The presence of obviously soft or resilient materials will often hinder creative ideas.
Plastic Easter eggs will help students gauge how they will need to accommodate a real egg without risk of accident.
Folding tables make excellent ramps. Fast, easy, and edible hard boiled eggs:
Place as many eggs as will fit in a pot of cold water. Make sure the eggs are covered with at least one inch of water. As soon as the water begins to boil, turn off the heat and cover. Wait 8 minutes. Place eggs directly from the pot back into the carton (most of the moisture will evaporate).