You can have this acrylic pattern from here:
There are 2 sizes: No.6 and No.9
Hardware: You should buy ball bladder, each ball bladder with rope, rope lace tool and ball pump needle gift. You can buy 1 kit acrylic pattern, but more kits ball bladder to make more footballs.
Leather: We advice 2.2mm-2.8mm (5.5oz-7oz) leather;
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