Possible centerpiece idea. Tie balloons to current vases Balloon Centerpiece using mason jars.like this idea you can fill the jars with whatever you like - Candy for kids, shells, colored marbles, flowers, themed items. A Good idea to shelf.
Candy Cup Caps by Bakerella. This is so cool for a graduation party. Reese's peanut butter cup, Godiva candy and sweet and sour belts. Also shows how to make colored ones if you didn't want brown caps.