I think the thing I was/is most disappointed about is that I can buy the key caps that Cereal Killer uses for a Nordic keyboard layout. God damn those were cool.
iBook G4s had too and bottom panels that could have their paint stripped to be transparent. The earliest iBooks were translucent. Maybe a hunk of machined gorilla glass?
There are translucent lower receivers for AR-15s that are both light and durable[0]. Perhaps there is still hope.