While perusing Fast German Auto's pages, I found what appears to be head
studs made of recycled Chrismas tree ornaments. At least that's what the
description leads to...

Finally a cost effective solution to help prevent head gasket leaks, broken
head studs and corrosion. The problem is a complex one that everyone seems
to have part of the answer for.

These High <<<Tinsel>>> Strength, Anti Corrosive head studs complete the
answer by improving head gasket sealing, which reduces the amount of
combustion gases that seep into the coolant.

**** See for yourself!****
http://www.fastgermanauto.com/Products/HeadStud.htm

Ron Antaki
'88 Wolfsburg, mostly ornamental...