I discovered unmounted stamps at a recent convention I attended with my dear SIL. The background sunflowers are 2 unmounteds, which are mirror images of each other. These are really fun (and economical)!
Cardstock
Base: Whisper White (SU!) 11” x 4 ¼” - scored at 5 ½”; Mat panels: More Mustard (SU!) 4 ¼” x 1 3/8”; Image layers: Whisper White (SU!) 4 ” x 1 ½”; Sunflower stamped on Whisper White (SU!) and trimmed