Border States Leather work might consider it, I don't have their URL in front of me, but a search engine should turn it up easily.Also, it has been done a number of times by evil SCA types. There is even an article with digrams and illustrations published in the West Kingdom leather worker's journal and also in Society Hoofbeats.
If you would like a hard copy to peruse, I can supply you with one. If you can use basic tools, you can do it yourself.
Brenna
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Where in this world can man find nobility without pride, friendship without envy, beauty without vanity? Here, where grace is laced with muscle, and strength by gentleness confined. He serves without servility; he has fought without enmity. There is nothing so powerful, nothing less violent; there is nothing so quick, nothing so patient. England's past has been borne on his back. All our history is his industry: we are his heirs, he is our inheritance. Ladies and gentlemen: The Horse! - Robert Duncan's "Tribute to the Horse"