Make a grip on a phone charger cable

I came up with this idea as I noticed that cables get damaged from from being yanked from gadgets. The strain makes them break prematurely, so instead of buying new cables or repairing them once they break, I thought it would be cool to design a feature into the cable to prevent this from happening in the first place. 

 The feature is a grip so you can yank the cable from your devices, but the real benefit is that the Sugru bonds to the cable and the plug eliminating strain on the cable. This should save the cable but also allow me to use my stuff the way I want to without worrying that I will break it, yay :) 

James, London