I had an idea float into my head for Halloween that I wanted to try with some 1/4" thick smoke acrylic. I found some in the scrap bin at the local Tap plastic store and then started doing some searches for greyscale skeletons on the web. I found one I liked and after 15-20 minutes in photoshop I was able to get it to resemble something I thought I could 3D etch. Here’s the final pic if anyone wants to use it.
I cut a coffin shape around it with a hole for a keychain to go through, then etched the skeleton into it using speed 300 power 80 and greyscale vary power setting for a nice deep etch. After that I left the protective paper on it, masked the sides with blue tape and spray painted it to fill in the etch for a back fill.
after letting it dry I peeled off the protective coating and was pretty happy with the results.
Also, I put a layer of glow paint in before the white fill so it glows in the dark
It would probably make for good party favors…