Successfully[tastefully] wearing brightly-colored eyeshadow, even as a small accent.
In the past, I've tried doing most of my eye design in neutrals, then adding a bright color on the outer corners of upper lids as an accent.
When I put on the bright heavily enough so that it will show up, I panic and think, "EEuw; trashy!", lunge for my blending brush, and end up blending the whole business into muddled oblivion.
I have bright green eyes, so I figure God is trying to tell me, "Carla, stick to neutrals; it's all about your
eye color, not your
eyeshadow color."
Lately, I've just kind of given up on brights, and have been buying taupes by the truckload.