I've had a lot of help here on finding suppliers for the finished article, but they're so damned expensive I want to make my own. (£154 FFS!

)
The stainless steel halo shouldn't be a problem. Sticking the damn thing on the cylinders is!
Does anyone know where I can get the collars which fit around the valve? ...or suggest some way I can fit 12mm stainless steel bars around the cylinder neck?
Many thanks,
John
