I’ve used 64 lights, chopping the strip and soldering it back together with ribbon cable in an 8x8 square grid, an arrangement which just fits on the back of our recovered Compaq laptop.
Although our laptop drives a grid of LEDs, you could make an illuminated border, circle, star or other shape which uses many fewer lights. Equally, you can wrap a spiral around a cardboard tube to create a column of light using the whole strip.
Loading more stuff…
Hmm…it looks like things are taking a while to load. Try again?