I collected some driftwood, mounted it to a 6mm plywood board I had painted black, added some trimming around the edges, and some strips of LED lights around the back, hung it on the wall using some french cleats.
The music is free from youtube:
Thingamajig av Audionautix er lisensiert under en Creative Commons Attribution-lisens (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/
Building a driftwood headboard with LED backlights