The invitation: the sleeping bag is clip-art from MicroSoft Word. I changed the color of the bad for each invitation. (It can be printed in black and white onto different colored paper if you don’t want to use up as much ink.) I used an X-acto knife to create a slit at the top flap of the sleeping bag diagonally. Then I folded paper in half and glued along the 3 open sides to create an envelope. I cut the invitation narrow so the rectangle looks like a pillow in the sleeping bag. Slip the invitation into the diagonal slit to complete look.