Card stock, scoring tool, cutting mat, adhesive, stamp and embellishments
Cut a piece of card stock 5 inches width x 11 inches length. Score at 2 1/2 inch, then at 6 inch. Fre-fold score lines.
Here is card when folded closed. Decorate as desired.
My final creation using an old stamp called Pansies. I have layered some designer paper on the front and the inside to match. Your panel can be as large as you would like, depending on the stamps used. Below is my card when folded open. Enjoy