Hehe - yeah!
Shawn R L also made a point that you could use SMT LED's to light transparent ones, or you could paint them with UV reflective paint and use a UV light
BARBARIAN! lol
Yeah, Things don't necessarily always have an OBVIOUS use, but it helps just to keep an eye out for interesting shapes, designs, or in this case, colour/transparency
An excellent idea, yes; however, I'd suggest a pic of sprues in raw form, to help beginners. Took me a few minutes to figure it out (I get it). A vote of 9.5 from me.