The Sonic corkscrew was a sonic device that Iris Wildthyme owned. Panda didn't believe it was capable of doing more than opening bottles. (AUDIO: The Iris Wildthyme Appreciation Society) It had similar capabilities as the Doctor's sonic screwdriver, as she could use it to fix electronics. (AUDIO: Iris Rides Out)
When Iris visited Weston-super-Mare in her "Barbarella" incarnation with Panda, she used the corkscrew to scan for the Forge. (PROSE: Project: Wildthyme)
Iris also used the corkscrew two incarnations later. She used it on a replica of Panda. (AUDIO: Iris Wildthyme and the Claws of Santa) She once used it to to send a creature back to another dimension much to Thomas Carnacki annoyance. (AUDIO: Iris Rides Out) She later used in in her fight against the Lady Bow'n. (AUDIO: Iris at the Oche) Iris could override security protocols and locks around the Turpsicorp building. (AUDIO: A Lift in Time) There was a knife on the Corkscrew which Edwin Turner used to cut a vine to save Zane from falling to his death. (AUDIO: High Spirits)