I didn't love any of the existing leg hose adapters so I made my own. I looked at the GBfans.com version as well as many of the movie versions to come up with mine. It may be a little on the short side compared to some but I think it works.

I had some grey pla so I just printed and left as is, looks close enough to the movie versions. I also used velcro to attach which isn't perfect but it works and I may switch to magnets in the future.

See this post on gbfans.com for the creating the yellow hose.
http://www.gbfans.com/forum/viewtopic.php?f=4&t=40310&p=4892632#p4892632