Since he first posted This, I have wanted to make it. Thanks to @ppipa1 for the file, it worked great!
The frosted acrylic I had has a different texture to it so the colors didn’t come out as nice as his.
A Christmas gift for my Metallurgy & materials engineer Son. It is a puzzle, but I wanted to make it suitable for display in the “classroom” of his home where my grandchildren are homeschooled, so it is covered with another sheet of medium acrylic held on by magnets so the puzzle pieces don’t fall out.