Today, I was trying to be subtle, so I went with a grayed-out pink with some slight silver glitter.
This is one drop of creme red (like Essie Jelly Apple, but dollar-store brand) added to a light gray base with silver microglitter. Not a bad color, but a little boring. After work, I got a little more creative.
I painted creme white stripes of differing widths across the nail, and then added some almond-shaped plastic jewels randomly. After that, I used a dotting tool dipped in creme black to make some black dots on the white stripes. Quick and easy. It reminds me of a masquerade ball or court jester. The plastic jewels were dirt cheap and they come in a lot of different colors. I often use real Swavorski crystals on special designs and recycle them for later use, but I think these black plastic ones were perfectly suitable for something fun and different.