In this Instructable I'll show you how, and offer further proof that wire is up there with duct tape as a universal super-useful resource.
Step 1: What You Will Need.
Chose wire that is thick enough to support the load you are hanging. This will require some guesswork.
Whenever I see discarded fencing wire I usually pick some up so I always have a good supply of it for little jobs.
Step 2: How to Shape the Hook
2. Bend the wire in half.
3. Bend the wire into a hook shape at the bend.
4. Separate the two ends slightly and bend them to form an "s" shape. See the picture.
5. Cut the two ends about 5-10mm from the last bend. This forms the part that is driven into the wall. I make these cuts with the pliers at an angle so it leaves a sharp point.
Step 3: Installation
The points should be angled down slightly so the weight on the hook doesn't pull them out. In fact the weight will actually make the grab the wall tighter.
Now you hook is ready for use.
Step 4: Testing
First I tried a block of steel that weighed about 10kg. No problem.
Then I tried a length of railway track. This bit was about 20kg. Still no problem.
Step 5: Bonus Mini-Instructable - Free Nails.
Just cut the wire into the length if the nail you need and maybe straighten it a bit with a hammer, and that's it.
They aren't quite as easy to use as bought nails, but they do the job nearly as well.
I hope you liked my simple Instructable. Please feel free to comment or ask questions. And don't forget to vote for me in the contests.