When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I'm just using an amber halogen 7443 bulb with chrome finish so that the amber doesn't show through when it's not lit.
For the shrouds it was a combination of E46 2.5" shrouds and Type I shrouds from retrofitsource.com. The shroud for the TL projector was a lens holder from a halogen projector and polished tin sheet metal.