It's not a maker project without LED lights.
But I discovered that you can get involved with this kind of luminosity on three levels, at least.
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You can buy a string that comes complete with a power supply and a little remote control that allows you to cycle through 300+ animations. Something like this.
Want something more subtle?
You can get cool, under-the-counter strings that give you 3 shades of white.
Then there's the DIY variety, where you create exactly what you want.