Introduction: Leather Cat Card Holder
You can have this acrylic pattern from here:
http://www.leathercraftpattern.com/Acrylic-template/acrylic-card-holder-pattern-A-111
The finished size is about: 4.3" x 3.5" x 0.6" (11cm x 9cm x 1.5cm).
Advice:
Hardware: 655 Snap x2, 10cm No.3 zipper x1, No.3 slider x1.
Leather: We advice 1.0mm (2.5oz) leather, size 22cm x 18cm.
Tools: If you are a new leather player, try to considerate to have tool kit here: http://www.leathercraftpattern.com/leather-tools-leathercraft-tools/leather-tool-kit/leathercraft-tools-leather-craft-patterns-leather-art-leather-carving-tool