Mikhailtech has posted a pretty short article on an etch done with a ZXMods window kit.

Getting out the Dremel I prepared to etch the design into the window. I attached the Flex-Shaft and the small engraving bit and set out to engrave the horseshoe. Knowing that you need to keep the Dremel above the item you are engraving when using the Flex-Shaft I had to come up with a makeshift stand to hold the Dremel. I used a fireplace tool stand and it worked beautifully. Now that that little issue was out of the way, I set to work on the etching.

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