Great job! It looks like you found a nice solution.
I use an antisatic strap prefessionaly and have been for over 35 years. The straps I have are metal expanding watchstrap type and elastic conductive fabric. The elastic ones are the predominant type used in industry.
The one thing in common in all the straps I've ever used is that they all connect to the wire via a snap button. So, if you yank your hand away, the snap comes off. I know I have done it many times by starting to walk away from the workstation and forget to unclip. Also, the elastic type slips over the hand rather easily and can pull away readilly if the wire is pulled on, unless you have them adjusted too tight.

Anways, other than adding a resistor, your clip is probably the easiest to pull away and easy enough for anyoneto make.