I make tarot bags all the time. I love using Kimono fabric for the material as it makes decks look really classy and pretty.
The photos below are from my latest bag. I saw the pattern and adored it. The hat and besom look so realistic. Plus the colors got to me so I bought it (Along with a Hello Kitty mummy pattern and a gold dragon kimono pattern) I bought some Halloween themed ribbon and I then found a package of charms and one of them was a crystal ball and stand.
I buy 1/4 of a yard which costs me between 2 and 3 dollars.
From there I cut the fabric so that the deck of choice can fit inside it.
I open the fabric and fold over the top so it creates a pocket for the ribbon to go through. I sew across the bottom of the pocket.
Then I fold the fabric inside out and sew it up, making sure to not close up that pocket.
Flip it inside out, thread the ribbon through and you're done.
The oracle it houses is the Oracle of Shadows and Light by Jasmine Beckett-Griffith. Its lovely and befitting of the bag.
