Instead of spending thousands of dollars on a high tech fingerprint fume hood like this:

You can (almost) do the same thing with a mini model like this:

If you're confused by this, let me start from the top.
I've been printing inserts for translucent buttons, but sometimes they get turned the wrong way.
After reading
this at GGG, I figured I'd try the trick that Randy recommends.
For permanent installation a small drop of GEL superglue can be placed on the back of the PGI at the point where it meets the inside wall of the plunger.
Well, it turns out I used a little bit more gel superglue -- 8 really tiny spots around the diffuser.
Wanting to see how well it came out, I assembled the buttons and everything looked great.
The next morning, I lit them up to see how well it worked and they looked like

.

Taking the buttons apart, it became obvious that the superglue did exactly what it does in the fume hood on CSI, bonding with the fingerprint oils -- it built up quite a thick layer.


Lessons learned:
1. Use the least amount of superglue possible.
2. Let it cure fully before assembling the buttons.
Hopefully this helps someone dodge the bullet.

Scott