Mannequin 3: King Tut, "The Maleiquin"
This idea pitched by the gang amused me at first but it wasn't until they started to talk about mannequin genitalia that I realized just how perfect it would be.
King Tut's mummy has had a string of genital-related hijinks that would make for comedy gold. First, he is the only known mummy to have been mummified with an erect penis. Then, sometime between 1922 and 1968, that mummified penis was broken off and thought lost... then it was rediscovered buried in the debris around the coffin in 2009. There's also speculation that the mummified member might not have been his penis at all and that it may have been to cover up a rare genetic disorder that caused underdeveloped genitals. Way more than you ever needed to know? Then just know that this wacky meet-cute, living mummy, erect penis, missing penis, and finally tiny penis comedic progression really writes itself. You're welcome Hollywood.