Mark Mahoney Tattoo Inks - Gangster Grey Collection​ Mark Mahoney Inks are trusted by some of the most sought after artists around the world. They proudly back these superior tattoo inks because artists know that they’ll deliver a bold, strong design each time. Mark designed this tattoo ink collection specifically with Intenze Ink. These black, gray, and white tattoo inks are perfectly suited for black and gray portraits, lettering, religious tattoos, and Cholo artwork. Mark is an icon in the tattoo industry and developed this formula specifically for his use until he shared his “secret recipe” with Intenze in this unique collaboration.