All I needed was some sturdy cardboard (I cut apart a tri-fold presentation board)
My initial thought was to use page protectors, but I didn't have any on hand. So I used laminating sheets that I already had. They were already 5x7 so I didn't need to cut them at all after running them through the machine. Since the cardboard I was using was already white I ran them through the machine empty, but if the cardboard you're using is brown just laminate a piece of plain computer paper.
My laminator is still one of my favorite things I bought as a teacher!
Scissors and duct tape.