The whole idea is to make sure it will blend well with the current season’s fashion, just like any other decent fashion item. How about red ladybug characters or a marine look anchor tooth art?
Japanese girls also push the boundaries even further by matching their nail art and teeth art, including design and colors. The entire process is simple and safe, where all items are attached to the tooth by a special glue, where a special kind of LED light will help fasten and dry the glue. You can remove the “tattoo” after a few days if you so desire. I don’t think this is recommended if your line of work is rather formal though…