Making one that looks like it works fairly easy, one that does, not so much. There's entirely too much load on the limbs that would be transferred to through the riser for it to actually work...Unless you had a team of mechanical engineers to figure out the calcs needed to make it functional and unlimited resources (think S.H.I.E.L.D :lol) to have one produced.
I'm going to get the bow from Hoyt (I shoot quite a bit on the side so the price isn't so painful), but I plan to add the faux details to the working bow so they don't interfere with it's function. If there's enough interest I would consider doing more than a one off set for folks to add to their own bow (if they can swing the cash) or that they can use for their own creations.