Can we make this on one of the walls in your playroom, pleeeaase? I'll help you if you'd like ;-)
Gender neutral nursery: Possible idea for "Wall Art"
I've got similar fabric and some fabric from Ikea that would work.
(Buy here: http://appdeal.ru/b49 ) New Leathercraft Hand Stitching Machine Leather Tools for just US $38.79
Me & Arrow Leather Key Ring at General Store
3D Print Your Own Leather Stamps from http://www.instructables.com/id/3D-Print-Your-Own-Leather-Stamps/
Belt Embossing Machines With high pressure and heated rollers which deeply emboss patterns and mock stitching along leather belts and straps. Can apply gold and other colour foils. Can also cut zig-zag or scalloped edges.