For your Spring or Easter arrangements try using jelly bean centerpieces. All you have to do is get two similarly shaped vases, one 3 inches narrower than the other. Fill the space between with layered jelly beans. These look great with tulips or daisies. I've also seen this done with a row of bunny peeps and jelly beans. They just scream SPRING!
Tulips and Jelly Beans
Try grouping different sized cylinders filled with various colored jelly beans without the flowers:
The possibilities are endless and FUN!
(top photo from allyou.com, bottom from jellybelly.com)