Pied Piper

Two devices made out of pipes to restrain arms and legs.
The arm locks works by opening the lid, putting the arms in the pipe and close the lid. The locking mechanism is not modelled, but velcro, padlock, leather belts or something else will do fine. Can be used with the arms in front of or behind of the body.
The leg mechanism works by insering feet and lower legs into the pipes, then unfold it while spreading the legs, which makes it impossible to withdraw the legs.
Suitable materials are plastic pipes of sturdy material, for example sewage pipe (unused).

Files

OpenSCAD file: piper.scad

Photos

Animations