The unidentified source said Barker's Famous Stars and Straps clothing line is created customized T-shirts honoring the former Blink 182 drummer's late personal assistant Chris Baker and security guard Charles Still, People magazine reported Friday.
Baker and Still were among four people killed Sept. 19 when a jet crashed near Columbia, S.C. Barker and disc jockey Adam "DJ AM" Goldstein were both seriously burned in the crash.
The source said the T-shirt fundraising is representative of the family-like atmosphere at the Famous group.
"Everyone that is a part of the Famous family are really close, so Chris and Che were brothers to everyone. The shirts were made to honor them and support their families," the source told People.