Here is a money holder card I made for a niece's graduation. The finished size is 8" x 3.5". When I cut the cardstock I made the card base 2 inches wider to create the flap for the inner pocket. So the card base was 8" x 9". With the 9" side horizontal, I scored at 2" and 5.5". Fold the 2" flap to the inside of the card and tack with some adhesive on each end to make a pocket. The other score line makes the fold of the card. Decorate as you like on the front and inside and tuck some cash, a check or even a gift card in the pocket for a gift!
Stamp sets used:
D1431 Happy Holidays (great set for tons of occasions!)
D1265 Gracious Greetings
Colors are Holiday Red, Black and White Daisy (school colors are red and white).