No, I am not recommending neon nails for your wedding, but the idea of being able to do color gradations on your nails with gel polish is intriguing. Imagine using pale blue, fading to grey and then pale pink. very pretty and unique.
I used acrylic paints in my spray bottle instead of nail polish. I started by adding water in the bottle, then slowly adding a few drops of white acrylic paint until the water looked opaque enough, while still keeping the liquid consistency