[s5e12] The Shiny Trinket Maneuver -

"The Big Bang Theory" The Shiny Trinket Maneuver (TV Episode 2012) - IMDb

: Sheldon uses it to "bribe" or apologize for his self-centered behavior regarding Amy's accomplishment. [S5E12] The Shiny Trinket Maneuver

: Mayim Bialik’s ecstatic reaction to seeing the tiara was reportedly ad-libbed, making the moment one of the show's most memorable. "The Big Bang Theory" The Shiny Trinket Maneuver