It's my turn to share a tutorial over on Splitcoast - I hope you'll head over to see how I make my Starburst Backgrounds!
For this card I used stamps from Concord and 9th - a fun interactive set called Shine Brighter. These backgrounds are so great for smaller images - besides filling the space with so much fun color, they draw your eye in to a single focal point.
Someone asked what kind of label paper I use for the variation with no gaps between the rays. I use this paper from DigiOrange - I buy the larger quantities because I use this for printing mailing labels - each sheet has 2 half-sheet labels on it and the adhesive is very strong.
Hop over to Splitcoast for the tutorial, video, and more samples!