Locker hooking needles have an eye at one end and a hook at the other and are used in the art of rug making. The hook pulls up loops of yarn which are then locked with a thread which is threaded through the eye.
Here's another look at the DIY diaper holder that would work great in a nursery! My clients had this brilliant idea to use a peg board and these metal baskets for a diaper holder. A pretty awesome DIY nursery project!