I am a deck collector, but I don't really want to keep my decks in the boxes they came in —they're all different sizes, and not easy to organize. So I started looking for little pouches for my decks. When I couldn't find exactly what I was looking for, I decided to make my own! 
 
This is a ooak design that I created in 2013 through trial and error. The pattern is easily adapted to any size deck, and I attach a custom crystal bead for protection (and pretty flair!). 
 
These should fit any standard size deck 2.75" x 4.75" (70 mm x 120 mm) cards, regardless of deck thickness. Fit will improve with use.