If, like me, you often look at metal (ferrous) objects and wonder if they would make good electrodes or not, then you might be interested in this idea. I often would like to try different objects on or in me but have struggled with finding a good and easy way to attach them to my e-stim cables. That problem made me seriously think about a solution to that dilemma and here is that solution. A 3D printed housing containing a very strong (2kg of force) magnet and a screw to attach it to a short section of conductive rubber that accept 2mm plugs. I have made a prototype and it is fantastic (you would never believe how much fun you can have with a spoon LOL). A strong magnet ensures a good connection to any ferrous object. Accepts 2mm TENS style plugs (like you use with self-adhesive pad electrodes).
