I had my husband cut some 4" by 4" wooden blocks for me so I could collage on them. I love the colors on this elephant act image from a collage sheet from Alpha Stamps, so I mixed up some yellow paint to match and then painted the block. The ringmaster is from a different collage sheet, also from AS. This is pretty much self explanatory if you look at it: layers of paper, some Mod Podge, and some sequined stars.
Voila! The Big Top!