Carabiners and hooks

[GeeTwo]

Check boat and dive shops. Mariners have invented all sorts of neat ways to put a line on a rung. There's even one called the "happy hooker" that basically threads the needle for you. It has a piece that toggles back and forth between two pivots, and the bottom line is that you just have to push the hooker across the rung and pull it back, and you've threaded the rung and are pulling back the bitter end. A bit pricey, but very cool, and reliable as well.