in snarly's ezmat thread, I believe snarly posted BB's slime shader et al.

in addition, ezmat contains corroded metals IIRC, which BB may have included in early matmatic distrib.  no wait, matmatic 1.5.0 was semiprecious surfaces with scattering, but rustymetals is in EZmetals presets.

I recall cellophane as well, but didn't spot link immed.