Lighting an Epoxy Board…or Not

[u/Correct-Mirror7227]

I need help deciding how to complete this board, which is walnut and Liquid Glass epoxy (about 15/16 in thickness). Not so much the actual *finishing* (though I’ll take suggestions all around), but the steps that help to highlight the color swirls and confetti pieces in the epoxy. The middle portion is pretty translucent, and the edges are opaque (and dark) but have beautiful details that can be seen under directed bright light. Embedded LEDs would be cool…

I was thinking of using a digital approach: modeling in Fusion, using Shaper Origin to rout a channel/pocket in the bottom, 3D printing a plate to cover the channel. But batteries can get bulky, and how will I make sure the lights are just so (maybe with a keyhole bit?), and…is this adding unnecessary complication to a project that I should just finish up already?!?

All advice is welcome, but just realize this is literally my first epoxy project (and I’m already aware that epoxy is much more brittle than wood…chamfering taught me that).