HyperKore Laser Etched Window Kit
 

To my surprise, what arrived was a package containing two sample
etchings and one complete window kit. I opened the package labeled
"Tank Sample" expecting just an image of a tank and when I pulled out a
piece of acrylic and held it up I was a little confused. It was hard to
see what it was against the white concrete floor, but when I put it in
front of a darker background, I was immediately impressed