The Kathman-Hairdo was contributed to the Steam Workshop.
Main article: Item sets
|The Monster Mash-Up Pack|
- [Undocumented] The Kathman-Hairdo was added to the game.
- The item's name is based off Kathmandu, the capital city of Nepal.
- As referenced in the description, Sir Edmund Hillary was one of the first men to ascend to the summit of Mount Everest, the highest mountain on Earth above sea level and the most notable of the Himalayas (where Yetis are claimed to reside).