These RBG LEDs are addressable through Betaflight and are perfect size to mount onto the outside of your ducts and really make your Tiny Whoop light up from all angles.
They can be glued on using E6000 or any other flexible clear glue. The Micro Clothespin set really helps when mounting these LEDs
They come in two different sizes: Short (50mm, 10 LEDs), and long (100mm, 20 LEDs)