i have a virtual boy system and the stand but its missing the little knob piece that allows you to move it around on the stand does anyone know where to find a replacement?

just so happens i found one on eBay yesterday… here is the link…

http://www.ebay.com/itm/Nintendo-3D-Virtual-Boy-VB-mount-head-plate-for-stand-/121372962761?pt=US_Video_Gaming_Replacement_Parts_Tools&hash=item1c42646fc9