From time to time, you will find here some ideas with Paper2Play products. The most difficult is to the first move, but once you've tried, you'll find it difficult to stop yourself!
Brush double-sided foam tape or adhesive tape.
First prime your stretchers with white gesso or white acrylics. Then paint wiht a red acrylic paint.
Glue the napkins you've chosen on the painting cardboards.
Then tape those carboards using the double-sided adhesive tape.
In this example we've chosen: