Kernel Bob 
This is what I'm thinking for the box top. Printed on a sparkly build plate, one whole layer of transparent purple. The second layer is opaque, except for the logo, which is transparent all the way through. Depending on the light, the logo is sometimes easy to see, sometimes obscured by sparkles.
I'm hoping that it's enough to identify as a logo but not immediately obvious what logo it is.
🧵 17/N
