I used bright yellow cardstock from the Bazzill 'Rainbow' collection, as well as Bazzill black cardstock. The image is from a software called 'Colored Impressions' by Lasting Impressions for Paper, Inc. I love this software because most of their images look like stamps, and you can re-size them or change the colors.
The pretty red ribbon is ribbonFX from Hobby Lobby. The buton is from a grab bag bought from Buttons Galore.