Popsugar Beauty Nail Art Muppets Most Wanted Nail Art by OPI Trust Us: This Muppet-Inspired Nail Art Is Worth Copying March 29, 2014 by Maria Del Russo View On One Page Photo 28 of 31 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 28 Step 4: Outline It Using a thin nail art brush, continue to outline the two sides of a mustache. Previous Next Start Slideshow Beauty How-ToNailsOPIMakeupNail PolishNail Art