I finally got around to writing out my pattern for tarot pockets! You can now download the pattern and make these beauties yourself. Everything is measured to fit an average size deck (70x120mm) but will fit more loosely or snugly depending on the thickness of the deck. I personally like a tighter fit for optimal protection of the cards.
 
It takes me about 3-4 hours to knit one up, and I'd say I'm an average knitter. Any other questions? Don't hesitate to reach out!