Come Together Kids: Mini Marshmallow Shooters (or Pom Pom Poppers) put a balloon over the top half of a stiff plastic cup, with the bottom of the cup removed. Pull of the balloon tie with the pompom inside, and POP!
Homemade floam is easy to make and SO FUN! Much cheaper than store bought, too! Recipe: tsp of borax cup of warm water & cup of warm water- divided oz of white school & cups of polystyrene beads Optional: drops of food coloring
Marble Races with a cheap pool noodle (occupies the kids for hours.) Did this, but instead of cutting the pool noodle, the marble is small enough to fit inside the full noodle to roll down. Then can use the noodle for other things too!