[tumblindice]

My SWAG on the first part is ‘plexiglass’ but as far as the Roman sputum, like Long John Silver I’m stumped.
I wonder if you can buy a bulletproof, bee-proof plexiglass cup.

[CurlyDave]

...but as far as the Roman sputum, like Long John Silver I’m stumped...

Probably "Roman scutum". A scutum was an oblong shield. Sort of like the ones you see riot police carrying. The only problem is they are polycarbonate, not plexiglass.