I built these hooves a little while back, and I'm quite fond of them ^_^
zephyr42 did the 3d modelling for the hooves, and we got them printed at shapeways, then I've sewn the sleeves and sanded the hooves down and put everything together
They make a lovely clack! :D

Top left: hooves, showing underside and dewclaws
Top right: holding a jubbly lolly, they're tasty ^_^;
Bottom left: hooves during sanding (left) and before sanding (right)
Bottom right: top side of hooves
(Middle: placeholder chital)