Dress Form Arm - for Annabelle

I like the idea of having an arm (or two) for my dress form. 

I found some sources, one being on the McCall's site, but unfortunately this particular product only

 ships to the US and  it attaches with magnets.

My dress form, (which I named "Annabelle") is the 

Uniquely You pinable foam dress form, not a PGM dress form so the magnetic arm wouldn't work,  but I can easily make my "Annabelle" an arm.

I found this  great video tutorial by Diane Deziel.

I should have made one years ago!!