CumHammer is a brand management agency that appears in the Season Twenty-Six episode "The Worldwide Privacy Tour".
Background
Butters introduces Kyle to a brand management agency known as CumHammer to work on his brand, after seeing the latter being left off by the other boys. At the brand management center, Kyle is assisted by Mr. Davis who suggests some 'brands' for him. Kyle settles on a "reliable, fun-loving, punctual, victim".
When the Prince and Princess of Canada moved to South Park in a desire for privacy, Kyle begins to complain about their activities, much to the annoyance of the other boys. Seeing that his brand is not working out well, Kyle visits CumHammer for a replacement, settling on a "thick-skinned, super cool, nothing bothers him victim".
The Prince and Princess of Canada, following what they view as an invasion of their privacy by Kyle, visit CumHammer in an attempt to change their brand as well, but soon encounters Kyle and Butters, the latter of whom had just been beaten up by Bebe after asserting his brand on her. Kyle accuses CumHammer for attempting to turn people into products, further explaining that individuals should not try to project their image or change into one that people expect them to be. This moves the Prince, who in turn supports the idea of living a normal life free of publicity without the need for a brand. All other clients concur to Kyle's sentiments and leave the building, except for the Princess, who stays silent and remains in the office, much to the Prince of Canada's disappointment.