As I promised, here is my take on the easel card made with an Art Philosophy card shape. I started by cutting Square4 at 4.25", and its card counterpoint at 4".
Then, I folded the card along its score lines, and folded the front back over itself.
Spread plenty of glue over that newly created flap.
Attach the 4.25" Square4 to the glued flap. Be careful that the main part of the card is not visible from behind the newly attached shape, as seen below. This is a view from behind.
Cut your B&T Duos paper into a 4" Square4. I then cut it down the middle, so that I could use both sides on my card front.
Glue it onto the front of your card. I also cut a piece of the border strip and created two tiny flowers.
Here is the finished easel card. I have stamped the front with the black cat, added some embellishment and put that border strip down behind it all. Most importantly, I added a piece of the B&T Duos inside the card to "catch" the card front and make it stand. (And I simply used the negative piece left behind when I cut the 4.25" Square4, and just trimmed it to make it fit. I believe in using just about every scrap if I can!) Remember, you can adapt this idea for just about all of the card shapes on the Art Philosophy cartridge.