Several weeks ago I found an excellent trinkit to set next to my computer. You can also set it on your workbench. I found it in the catalog of American Science and Surplus for only three bucks, and it works great, though you need a strong single light shining at it.
I can't find my catalog, but I believe the link is something like sciplus.com.
If that is not right google american science and surplus.
Of coarse, the picture is 2D, but the holo image is good 3D