Unicode Key Labels for X-Keys Input Devices

OK, this is uber-niche, and if it helps 1 other person I'll be utterly shocked, but here we go...

Quick background: I sell magazines on eBay and sell just enough Spanish-language ones that I was looking for a convenient way to enter unicode characters such as accented vowels and "ñ"s. After trying a few on-screen keyboards and even an Android app on my tablet, I finally broke down and bought an X-Keys, which is a fully-programmable secondary keyboard. It has a facility to print labels, but I thought it'd be nice to 3D print labels so that the light shines through the character, like my gaming keyboard does. Had to do some trial and error with this and finally got the top row containing accented vowels and Ñ. Tried a couple times to get the last two keys (¿ & ¡), but since they share the key with a shift-layer character it was beyond my printer's limits to cram so much in such a tiny space. I'll most likely upload the other rows as I make them. I have all the grave accents and