Anyhow, I started physical therapy a few days ago so that some day... maybe not tomorrow... maybe not next week... maybe not any time soon... I can fully use my arm again.
During the first session the therapist pulled out this exercise pulley system that I could use to do some of the stretching. She recommended that I buy one from the center or from a sporting goods store for home use. I gave a quick glance at the setup and my first thought was "Buy!? I can make that... and with one hand no less!" and that is more or less what I did.
It was good to be making things again and surely cheaper than buying one as I only need to purchase the knob handles and the pulley (having all the other supplies on hand).
Step 1: Go get stuff
A small pulley
Soft rope (that you wouldn't mind gripping)
2 Round handle knobs
2 Eye hooks to fit in knobs
8" of webbing (preferably cotton)
A nut and bolt that can clamp to the grommet
A 1/8" quick link
An Exacto knife or razor
Step 2: Handles
...but I only have one hand!?
Well... the knobs fortunately already have the holes drilled for you. Just hold them between your knees and twist it in with your good hand.