Nixie clocks possess the subtlety of simplicity as well as a retro run-down look. The finished project looks fantastic but good luck trying to make it look like the picture. If you aren’t interested in assembling electronics, then there’s nothing simple about this DIY.
For $150, you can have this 115-part set of tubes and socket pins sent to you disassembled. You’ll also have to purchase an AC adapter to power the clock, as it is not provided for you. The kit comes with a detailed 20-page user instruction guide to help with the assembly. I’m sure it’ll impress your Grandmother.