@Gamer I'm not sure I'd trust my precious OnePlus One with a homemade charger, but well done nonetheless. I use a Nokia charger with my OPO and it works fantastically. My step-dad also has an OPO and he uses the charger and cable it ships with, plus an SA adapter of course. It doesn't feel wobbly at all, so perhaps the problem was just the adapter that you were using?
Hehe, it's more a homemade adapter than a homemade charger. Two wires go from the charger pins to the plug pins, it's more secure than a standard adapter.
My biggest gripe was how much it sticks out from the wall when used with a standard type adapter. (wall - adapter - charger - USB cable direction) with the USB cable sticking out parallel to the ground. Plugging it in behind my bed side table meant the table had to be pushed at least 100/120mm away from the wall and the cable was pushed up against the table. Now the table sits almost flush and the cable feeds directly up. Win win.

