A Bit of Tom Jones?.

In a late night bar, Henry is approached by a mysterious woman who offers to sell him the severed "manhood" of Wales' greatest vocal entertainer. Believing he can make a fortune selling the infamous appendage on to obsessive fans, Henry stumps up the cash. To help find the right buyer, Henry teams up with his slightly dodgy best friend Teddy and together the two head off on an insane journey that leads them deep into the secret world of celebrity body part trading.