I just love this set. Hopefully the photo shows you how these stand up and also lie flat for mailing.
This is fun and easy. Thick Whisper White is 2 3/4 x 8 1/2, scored at 4 1/4 and 2 1/8. The second piece of Thick Whisper White (for the front) is 2 3/4 x 4 1/4
Cut the solid layer 2 1/2 x 4 1/4, then the Fruit paper 2 x 4 (very paper efficient - LOL!)
Layer the front pieces, add a greeting, don't forget a little piece of fruit!! Glue the front piece on the scored part of the cover (just the front part that is sized 2 3/4 x 2 1/8 so it can stand up and lie flat).
Insert the fruit post it notes. I got mine on Amazon, here are the details (8 for $9.99)