Just quickly sharing a little 3"x3" card I made for my friend's daughter for her birthday.
This card was super simple. Just a punched butterfly (Martha Stewart punch) attached with some foam adhesive to allow the wings to lift up off the card, and a 'happy birthday' sentiment stamped and punched with the Stampin' Up! Modern Label punch. I used some pink eyelets to attach it to the card.
I made my own envelope out of the polka dot patterned paper using the WRMK Envelope Punch Board.
I really like these little 3'x3' square cards. They're easy to make and you can play with some smaller elements and stamps that might look out of place on a larger card.