For an easy and nicely stylized way to control non-addressable RGB LED strips, be sure to check out Evan Kale’s Alien Beacon. It’s able to store lighting programs on an included Micro-SD card, and cycles through programmed patterns via an onboard ATmega328PB chip that drives a trio of FDD8896 MOSFETs.
Lighting can be modified on the fly via knobs that control speed, color, and brightness, along with a button to cycle to the next pattern. If you want to program in your own patterns, a program called Alien Bacon is available to help you set things up, and can even pull color patterns from video clips.
If you want to go even further, the device can be reprogrammed via exposed ISP pins. On the other hand, it looks like a capable device as-is, and, with the exception of the PCB-only option, has a nice hexagonal 3D-printed case with alien-like writing. It even includes a hole for wall hanging, allowing it to fit in with any science-fiction themed room with ease!
https://www.youtube.com/watch?v=Ncz0Ewp892c
