A very well detailed Triangle Glyph Tattoo. You can see that the pink flower is fully colored within the glyph triangle symbol as it slowly branches out into the less colored parts of the flower as the colors are only concentrated in the center.
Have you heard of black light tattoos? They're special tattoos made with UV ink — they glow under a black light, and are (generally) invisible in daylight. The tattoos have been around for a while now, but they've become increasingly popular over the