[Elecraft] PTT switch for K3

[Dauer, Edward]

I plan to try the SSB QSO party next weekend, and have the adapter for the K3 and a Heil headset – but I need a remote PTT switch with a ¼ inch mono plug on one end and a pushbutton switch at the other.  All I have been able to find online are nurse call buttons – which I suppose would work but the big red cross on the button is off-putting, and because they are made for use in a hospital environment they are expensive.  Anyone suggest a source?

Thanks, as always,

Ted, KN1CBR