Philanthropic auction site Charitybuzz has teamed up with George Clooney to offer an intimate lunch with him and writer Dave Karger at Soho House in West Hollywood. The lunch is one of a host of star prizes up for grabs in the online auction which runs until October 11. Other items include Neil Patrick Harris's signed Paul Smith suit from How I Met Your Mother, a walk on role in True Blood and a meeting with Modern Family Casting Director Jeff Greenberg. Money raised will be donated to the Gay, Lesbian and Straight Education Network (GLSEN), which strives to assure that each member of every school community is valued and respected regardless of sexual orientation or gender identity/expression.