For this card I followed a great video by Kimberly at My Craft Spot. http://craftspotbykimberly.blogspot.com/2011/05/happy-birthday-window-card-floating.html Her video is so clear and easy to follow. I only added one cupcake to my window because I was using some stickers and they were bigger than I thought. I sandwiched the stickers between cardstock and trimmed around it.
Purple base card-Colorbok
Patterned paper-K&Company (Sweet Nectar)
Border-K&Company (Summer Bright)
Cupcake Stickers-EK Success
Cricut-Birthday Bash Scalloped circle: Card-Wild Card
Adhesives-Scotch tape, ATG tape