The Fingerstache gained massive popularity in the mid-2000s as a quirky, low-effort costume piece and photo prop. It involves drawing a mustache—often a handlebar or classic style—on the side of an index finger, allowing the wearer to 'grow' facial hair instantly by placing the finger above their lip. While it became a staple of the 'indie' and hipster subcultures of the era, even leading to thousands of permanent finger tattoos, it eventually evolved into an internet-wide symbol of early 2010s irony and DIY humor. Today, it serves as a nostalgic reminder of the early social media photo-sharing culture on platforms like Myspace and early Instagram.