DIY cupcake stands - so colorful! Get plastic wine glasses from the dollar store, fill the bottom with M&M's (or color coordinating candies) and put the cupcakes on top. I have glass sundae cups I could use. Fun way to serve cupcakes.
birthday centerpiece idea -- tie balloons on top--fill with any candy. let kids guess on paper how many pieces of candy are in the jar. one who is closest gets the jar at the end. Could work as table numbers/center pieces too!