Thinnest Hubcentric Spacers

Hi does anyone know the thinnest hubcentric spacers i can get which will fit on the mk1 wheel hub? Or whats the thinnest hubcentric spacers people put on themselves? Cheers

10mm I've used in terms of utilising the spacers spigot.

But also used 5mm which are so thin you can still seat the wheel on the spigot/Center bore of the hub. 

I've got a pair of 6mm (3mm each side) H&R spacers.  Came from venom motorsport. Bought the thinnest I could find as ats classics practically touch the front calipers on a GTI.