Start with a bunch of this:
And a set of these:
Trace out the pieces for a saddle and the outlines of the tooling:
The rawhide tree with the seat and swells covered and the cantle already tooled:
Even the stirrups get some tooling and bling:
And the back cinch:
And the stirrup leathers:
Purchase price? $5,000 per saddle, in case you were all fired up to place an order.