Mariano's first skateboard deck sponsor was Powell Peralta and he appeared in the company's video "Ban This", alongside Paulo Diaz, Rudy Johnson, and Gabriel Rodriguez.
[6] Mariano joined professional skateboarders Rodney Mullen, Jeron Wilson, Andrew Reynolds, Gershon Mosley, Ryan Wilburn, Heath Kirchart, and Mike York on a trip to Australia for the filming of a documentary entitled Canvas.
Mariano revealed in a 2012 interview that the filming process for the video was very physically intensive and "ice baths, massage therapy and chiropractic adjustments" were factors in the completion of the part.
[14] Following his Pretty Sweet video part, a level of anticipation developed in regard to the awarding of the Skater of the Year (SOTY) trophy to Mariano by Thrasher magazine and Gary Rogers, from the Internet show, Skateline, was a significant contributor to this momentum—the award was eventually given to David González.
"[20] Mariano is Italian-American and has revealed that, at the age of 37, professional skateboarding has led to significant difficulties in his personal life:
"[14]He is in a long-time relationship with stylist Gina Rizzo, who was married to fellow skateboarder Justin Pierce until he died in 2000.