Seattle artist Kim Graham says her Digigrade Leg Extensions "give a person the uncanny and graceful appearance of an animal."
The leg extensions are made from steel, foam, plastic and cables. They add fourteen inches in height to the wearer - assuming that the wearer can actually stand or walk on the damn things. Graham says it takes about fifteen minutes of practice to lean how to use the extensions and that they work best on level surfaces. Uneven surfaces and inclines, not so much - and you should probably avoid stairs, and galloping.
The leg extensions are made by hand and have to be custom-fitted, and they're not cheap, $750-$800 for the basic unit, $1000 with the optional spring-loaded hooves, more if you opt for the fur-enhanced covering - but, hey, a true Cosplay Furry would say damn the expense, I gotta get me some of that!