This was made with an old piece of swift racking steel, a piece of wood from an empty coax drum and a push switch from my parts bin. Wired into my Rig for easy PTT during contests. My VOX system was flawed and I was sick of false transmissions when coughing or moving.

Update: A year on and this thing is still going strong. Its a brilliant addition to the shack

These are relatively cheap, see Amazon link HERE 

I added a second microswitch inside so the action can be used for two separate functions, such as my shack sign, see HERE