this is a durable wallet that I came up working with signboard, or cloroplast.
It is made of just signboad and duct tape. The olny problem is it has no credit card pockets.

Step 1: Materials

Materials:
duct tape
5 x 6 inch cloroplast board
Tools:
sharpie
measuring tape
exacto knife or scissors

Step 2: The Bill Pocket

first, cut 2 2 and 1/2 x 6 inch rectangles of cloroplast. Then cut the two pieces in half length wise so you have 4 2 and 1/2 by 3 inch pieces. tape the pieces together as shown to make the bill pocket

Step 3: Taping It Back Together

tape the 4 squares together in 2s short side to short side with a little space in between, about a half inch between the first and just bind the second set making sure they fit around the first . tape on both sides. then fit 1 into 2 unfold and tape either side and the bottom.

enjoy.