I've been trying my hand at shaker cards and really having fun (aren't "new" techniques pretty awesome?!) This came together pretty quickly (that's pretty awesome, too, since it usually takes me hours!), but I have to thank these challenges for making it so easy!
I used the frame die from Paper Smooches; the confetti/streamers and word die cuts are from Papertrey Ink. I did try to stamp the word "birthday" on the acetate window, but all it did was smear. I think the "birthday" theme of the card seems pretty obvious (I think....)