It's a good idea but apparently anything that attaches onto these stilts are subject to the patent fees etc so could get expensive but I'll get someone to look at it...
Whilst on the subject I'm suprised you haven't had requests to make them for people yet!
I still can't understand how adding something to them has anything to do with the patent ?
True the name can't be used indorse any modifications but how can they claim patent to everything added to them ( Nike trainers, my foot ... ME ) !?
If you read the " Guide Manual " page 7. I quote ( Which I shouldn't do if you read inside cover ).
6, Product Warranty
.............. as well as damage caused due to improper use or unauthorised repairs will cause warranty to be void.
There for implying knowledge of aftermarket modifications and there for non-patented parts ( custom made parts ).
The only precedents I can find goes in favor of the aftermarket add-ons !?
But what do I know