I found the best cable ever. It has ends for an iPad, miniUSB, and microUSB. Instead of having 3 heads on different necks like a hydra, the three ends plug into each other on jointed hinges. When you bend it, it looks like a cute little scorpion or like horrible alien mouthparts!
The bits where it plugs into itself are very sturdy. The cable itself is thick and very short.
Here it is in action plugged into my phone! It is a “Magic 3-in-one” cable made by Innergie and handles data as well as recharging. As long as I manage not to lose this beast, I’m going to do away with carrying 2 or 3 different cables in my backpack (and never having the right one). If it ever falls apart at the hinges, I’ll still have the useful converter plugs.