I used some thick double sided K&Co paper for the base and some thinner K&Co patterned paper for the butterflies. (Yes I keep using the same papers that I used for the butterflies last week. I just can't quit using them. LOL)
The glue holding the micro marbles onto the yellow butterfly had not dried yet. I was just too impatient to wait to take the picture. LOL
The frame around the opening is white card stock that I inked with Tumbled Glass and a little bit of Antique Linen just to keep it from being too harsh of a contrast next to the patterned paper. Then I embossed it for a little texture.
Here is a video tutorial for making a "Peek-a-boo" card.
Here is a link to the cut files for the card base. Peek-a-boo Card