While browsing Hackaday.io I found an opportunity to collaborate with [Muth] and we put Core Memory and Neon Pixels together. They seem to be made for each other:

[Muth] built a fantastic project which stands on its own with hundreds of hand-crafted Neon Pixels. Both the individually controlled pixels and the combined 8x8 arrays are works-of-art on their own. I thought they would make a great match with interactive core memory, so I made a "Neon Pixel Edition" prototype with help from [Muth] .

Neither of us plan to make the Neon Pixel version available for sale, but it was a very satisfying project to combine our projects. Look for me at the next VCF and try it out! If you'd like to make your own Neon Pixels, all of the details are available at Github. There are a few references to these INS-1 tubes on Hackaday. Sometimes they show up in Nixie tube clocks, and they go by various names like Nixie tubes, neon dot bulb, ИНС-1, neon lamps or bulbs. Seems like they were manufactured in the 80's, but I haven't found much information on them. If you know more about their history, please share that in the comments. 

I'm still moving forward with the basic configuration of the Core64 kit which uses RGB LEDs:

I plan to have 3 Beta Kits available for sale shortly so that I can get some hands-on feedback. If you'd like to provide some feedback now, please fill out the form at the bottom of the page at www.Core64.IO.