The paint rollers is a personal project of Barabási, rooted in his childhood in Transylvania, where he has regularly worked with his grandfather, an interior painter. A common tool he used in the 1970s and 80s were the paint rollers, to pattern interior walls. In the past decades the use of paint rollers has virtually vanished even in Transylvania, thanks to changing tastes and the emergence of affordable wallpapers. Barabási has decided to research the history of paint rollers in Transylvania and Hungary, and turned this old but prevalent practice into a dataits arts medium that allows him to apply data and information onto large surfaces. The paint rollers used by Barabási are 3d printed, and uniquely designed for each project.

The Billionaires Paint Rollers connects to the six billionaires family maps, building playful patterns from each, altered to work with the medium of the print rollers. Each roller is NFT certified, recording the unique paint pattern it creates, a practice rooted in Barabasi's experience during the communism, where his typewriter with a typed sample had to be registered at the police. Inspired by Sol LeWitt's practice, a collector that owns a paint roller has the right to apply the pattern to a wall of his/her choice, and reapply it to another wall in case the previous pattern is destroyed, as long as the roller is still in the collector's possession.

The rise of the billionaire class has led to increased attention on the role of contemporary magnates in the art space. Some billionaires found art through their foundations, whose actions are transparent through their tax filings, and captured by the $Flow and the Philanthropies works. However, when individuals directly found art projects, their actions are largely invisible to the public. The BarabasiLab have started a project to unveil this cloak of invisibility, unveiling the role of billionaires in the art spate. In the business world it is very common for individuals to sit on multiple boards. As the Art Board work revealed, in the art space it is rare to have individuals sitting on the board of multiple museums or organizations involved in visual arts. Indeed, art institutions demand commitment from their board members, which means an expectation to use their resources and collections to benefit the institutions on whose boards they sit on. The Billionaires investigation extends on the Art Board project, by focusing not only on billionaires, but also their family members, and their giving and board membership.