For you that want to upgrade your armor to "Hero" Version, here's the TK Grappling Hook, famous for the scene where (terrorist) Luke Skywalker Swing over a chasm on the Death Star, in Star Wars ANH.
Ps. Please remember; this is just a Prop, so do not use it to swing yourself over any chasm!
Enjoy Your print, (I'm already made one, and it went ok)
This was designed based on several pictures of 3D models and props over the net.
final size is estimative, based on the wide of the TK belt which is 9 cm.
I'll recomend the use of a piece of a plastic sheet (like a "For Sale" sign) instead of the Box base, so it can have more flexibility.