Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2950561.
this is a simple print in place holder to keep your cables together. u can make several and place where needed. to operate you turn the large ring till the slot lines up with the slot in the smaller ring. then you place your cable in thru the slot. when done you turn the large ring till the slots dont line up. then the cables cant come out.
use supports. printed flat on table.
care in removing supports. use a single edge razor to cut the little bit of supports between the rings. on both sides of the large ring. just push razor down between and rock a little . thats all it takes to loosen it. then turn the ring back and forth to completely free the ring.
i included a stp file so that you can make modifications easier.