[Dagwood]

Once upon a time the cameras I bought had a thread on the shutter release button. Now all my cameras have a smooth chrome button and I want to use my cable release and air tube when the camera is on the tripod and a timer isn't practical. Has anyone seen anything that would do the job? It ,or they , would need to fit a Lumix compact TZ3 and/or a Lumix TZ28 bridge camera. Thanks,
Dagwood