Just use any regular LEDs (0.7 V drop) with your CR2025 (or any 3V lithium coin cell) batteries. Sure, the voltage is too high, but who cares? They won't burn out. You will just get a bit shorter battery life, which is still like, forever. And they will shine brightly! No need to be an electronics purist and worry about using a limiting resistor.
At first, the only ones I could find were 1.85v
But then I found some 2.3v (I can remember right now)
They were still under 3v and we were worried they would burn out.
but the guy at the place I bought them tested one on a machine in the back room and said they would work ok at 3v
the last glow round i started feeling kinda sick
it was foggy making everything blurry
and a couple people on my card keep using white (reg.) flashlights
and they also had those very bright white light, night ize lights for their discs (the kind that go through a hole in the middle)
i think i am like a bug and kept looking at the white light
i am hoping these bright lights going off and on was what was bothering me
i am going to try harder tonight to discourage white light, and work at not looking at the bright light
has anyone else experienced this?
or was i just having a bad night?