a neat fish tape that you can make out of zipites.
a radio tech showed me how to make a fish tape using zip ties. depending on what you need match the various lengths and widths, clip off the zip lock ends and tape together. These work great, need more length tape more sections together, smaller, larger, just get what ya need from hardware or autoparts store....
Another nice gadget is a CEN-TECH 3/16 fiberglass wire running kit. Ten sections of fiberglass tubing screw together and form a flexible/rigid fish tape up to 33 ft. I used this on my boat when my main halyard broke (mast had to be down). You can buy 2 sets and end up with 60 feet but be careful with that much length it may break at a connector.. Available at Harbor Freight tools, not very expensive and saves a bunch of headaches....