I'm in the process of supporting and slicing a UP rotary beacon that has a clear, dyed "globe" insert.
I've had a death in the family, so I won't be getting at this again until the funeral service is over in a week and a half probably since family is coming into town.
However, some new clear resins look promising for "clear" parts, with the caveat that for "clear" prints, rather than merely "translucent" prints, some fiddling with anti-aliasing, layer height, and possible "dipping" into uncured resin, then curing the part without washing it off might be the only way for glass-clear prints.
I'll be finding out more about it in the next coupla weeks, and I'll post my results here.
Cheerio!
Bob Gilmore