Caroline McCarthy’s Promise was one of the standout contributions from invited artists at Banksy’s 2015 “bemusement park”, Dismaland. The piece consisted of shiny mylar balloons spelling out the word “PROMISE” in gleaming, celebratory script. At first glance, the installation resembled the kind of cheerful decoration found at parties or product launches.

However, over the course of the exhibition, the balloons slowly deflated letters sagged, surfaces dulled, and the festive sheen collapsed into something limp and melancholic. The work was a powerful metaphor for the fragility of trust, the emptiness of marketing slogans, and the erosion of political or social commitments once celebrated with great fanfare.

Placed within the dystopian context of Dismaland, McCarthy’s Promise fit seamlessly into Banksy’s larger critique of consumer culture, broken systems, and disillusionment. What began as a cheerful gesture inevitably transformed into a sad and sagging relic an artwork that mirrored the disintegration of public faith in institutions.