If you're thinking, "What should I use to make my next Halloween costume POP?" consider Kim Graham's refinement of drywaller's stilts, Digilegs II. At $1,000.00 a pair you'll probably be the only one on your block with them!
It appears that the original design came from a system developed by Dave and Lou Elsey and used in a Soccer Playing Demon TV commercial for Nike. They were later adapted by Greg Orca as pivoting mechanical leg extensions for the "Farscape" character "Namtar", Series 1 episode 9 "DNA mad scientist" from 1999.
In the following video they are being tested by Adrian Getly on the grounds of Fox Movie Studios, Moore Park in Sydney Australia.