I used an iPhone cable as I had a broken one, but you could do this with any USB cable.
Date made: March 2013
Approx Cost: £0 - reusing old broken stuff
Approx Time: 0.5 hours
Step 1: Things You Need
4. Rubber/Eraser (optional)
5. USB Storage.
I had a cheap copy of a LaCie USB key. It wasn't very well made and the cover kept splitting, and the internals would move as they weren't stuck down well.
I threw the case out in the end as the internals moved and connectors would touch the metal case. Not clever.
I kept the inside though as it still worked fine.
For this task, you need a similar type of USB storage; a very small flat one! I'm sure there are plenty out there.
Step 2: Take Apart USB Cable
If you can keep a section of the cable surround where the cable joins the connector - we can use this later to cover up some of the glue.
Next separate the components.
The cover should slide off, and then you might have to prise the metal surround apart to get the old connector out. Try not to damage the metal part or the cover in the process though!
Step 3: Add Storage in to Old Housing
My USB storage wasn't thick enough to fill the metal connector, so it needed to be packed out.
I did this with a paper template and cut a bit of old eraser (rubber). This could be done with plastic or glue though.
I built it up to the same thickness as the inside of the metal housing, and glued together.
Next, put it in the metal housing. Glue it in place.
Next put the cover back over. Again glue it in place.
You can stop here if you wish, as you now have a nice neat small housing for your USB. But it's not secret, just small, so we will continue!
Additional Note: Thinking about this during write up; you probably don't need this rubber if you glue it down properly, and you could then use the space for the cable to be glued back in, or you could leave a channel in the rubber for the cable to be glued in - Pull the cable through the hole and glue it in place before gluing the cover on.
Step 4: Connect Back to Cable
(Also see additional note in Step 3, about leaving a channel/space for the cable within the connector.)
Depending on the size of your connector you might have lots of room or you might not (There are different sized connectors). If its small, there may not be much room for cable or glue, so you may want to use a bit of the cable surround to cover up the glue. It will allow you to use a little more glue too.
If you are just going to re-house your USB (and stop at step 3) then I would suggest going for the smallest connector.
If you are going to connect it to the cable, pick a large connector so that you can get a good strong connection to the cable.
Step 5: Enjoy/Hide/Prank
Use 1 - Secret Storage
Keep stuff hidden - I doubt many people would think to look there for your hidden data! (Unless of course they want to plug in their phone and try to use it!!!!)
Use 2 - Prank Someone
Name the storage drive "iPhone", Fill it with folder names that match that of an iPhone, but instead fill it with blank photos, warped photos, dodgy photos or some type of photo your friend wouldn't like (think phobia or scary)! Then when your friend plugs in their iPhone, they will be surprised/worried by the content, or think they have a virus!
(Just make sure the cable is plugged in to the phone before the computer otherwise it will appear too soon!)
Be sure to read the comments. People have come up with some great ideas for pranks!