Anyone know of a headphone plug switch?

I am looking for a switch that I can put in line on a stereo 1/8" headphone jack. Rather than get in to a long drawn out discription of the reason I need one. I would rather buy one than build one I was hoping I could find one already made so it would be more convenient. Checked radio Scrap and Electronic Parts so far and no luck.
9abc04e7 9af7 4043 a245 7c915149ba4atheo