Pawdicure Polish Pens (Dog Nail Polish!) from Warren London come in 4 different NEON colors! Paw-ty In Pink, Smooch The Pooch Purple, Blue, Orange You Glad I'm Neon and Walk In The Park Green. These Nail Polish Pens apply a quick drying, non-toxic, coat of polish that is easy to remove. Only one layer application is necessarily for that great look for your pampered pup. On dark nails, we suggest doing a base coat of white first and then a color for a better results.