In a game which may well prove to be the last in Town shirts for the likes of Graham Hockless and Phil Jevons, Town failed to impress.
Town took the lead in the second half when Chris Bolder headed home from close range after Darren Barnard's cross caused problems.
Scunny equalised through Paul Hayes and only Paul Fraser's heroics sent the game to penalties.
Tony Crane and Jason Crowe missed for Town to give Scunny the 8-7 victory.