This all started when I watched a video from Linus Tech Tips on decorating his office. I saw them make some ethernet connectors key chains to plug in a switch. I let the idea float around in my head for a few weeks until I went to my parent's house. When I was there, I grabbed some ethernet plugs and a crimping tool. I got home and make my version a reality.
Step 1: Gather the Stuff
1. crimping tool
2. measuring tape
3. router or switch
4. ethernet cable
5. ethernet plugs
6. wire cutters (optional)
You will need to measure out a 4 1/2 inch piece of ethernet cable for every two key rings you have.
Then separate the wire from the sheathing.
Cut the sheathing into three 1 1/2 inch pieces (you'll only need two)
Separate the bundle of eight wires into two bundles of four.
Step 2: Insert Wires
Take one set of four wires and a piece of sheathing along with an ethernet plug.
Stick one end of the first wire in the first slot and the other end in the fifth slot of the plug. Then you just repeat with the second and sixth slots, third and seventh slots, and the fourth and eighth slots. Now just slip on the jacket over the wires and crimp it. All you have to do now is rinse and repeat as many times as you wish.
Step 3: Done
Now just put it on your key-chain and insert it in your router. Put the router where you want and you have one nerdy key holder.
Step 4: Other Ideas
Another idea is to put a low voltage box in the wall with a modular face plate and some ethernet jacks to hang your keys on.
Step 5: Conclusion
For me this project didn't cost me a dime (Yay!). But when thinking about it the cost should be relatively low especially if you buy in bulk.
The router can be found at thrift stores for around five bucks.
Ethernet jacks: $12.99 for 10
Ethernet Plugs: $6.30 for 100
Modular face plate: $0.97
Low voltage box: $1.34
Total: about $20 - $30 for an AWESOME! key holder.