Subjectively

This is a pic of a duct tape wallet that I just made. What is hiding behind it is a 3.5×5.5 moleskine with graph paper. I scavenged the picture window from an old wallet I had laying around.
The front cover holds 6 cards nicely.
I made the card pockets to fit the cards that are in them. I wrapped the tape from the card pockets around the pen, with a little tape on the inside to keep the pen from sticking. Nothing but duct tape was used.
The pen is a modified Zebra F701 from this post. The loop also fits the pencil.
No animals were harmed in the making of this wallet, especially DUCKS.