EDIT Apologies, the previous base that was uploaded was an early revision so it most likely didn't work for anyone that printed it. This has been updated now and is the correct base. EDIT
I modified the wave lamp base to be used with the LED strip i had handy and then created a cap to keep the lamp together. The LED strip can be purchased at Five Below (https://www.fivebelow.com/multicolor-led-light-strip.html). The strip will require a trim at the end in order to fit. I recommend printing the lamp section with glow in the dark PLA. Both cap and base should be printed with supports, the wave lamp piece doesn't need supports.