Last year I bought an adorable retro Brownie camera made into an iphone dock for my computer on Etsy for about $50. I wanted to get one that I could use to just charge my phone at the office (I don't connect it to my work computer), and when I went looking, I found that they had gone up to $100 and up.
Since I have a large collection of vintage cameras, I decided to grab one and figure out how to make it myself! It turns out to be quite easy! You just need a camera, a drill and drill bit that is as wide as the USB end of your cord (that is what you will thread through) and some good glue (I used E6000.)
I will admit that it was a little painful to drill into this camera. I chose this one because it is low and wide so I wouldn't have to worry about it toppling, and because my family used to have one just like it when I was a kid. It reminds me of family vacations to Hawaii!
First, open up your camera and make sure there is nothing extra sitting in the film compartment. Decide where you want your doc to sit, and then begin to drill. I found that I had to drill through plastic, thin metal, and more plastic. It wasn't as easy to get through as I expected, because you are drilling through the main housing for the film and lens.
I drilled three holes and then drilled in between until I had the width I wanted. When I tried to thread the usb cable through, I realized that the outer hole was the right size, but inside the housing I had to make it wider, so I went back in and drilled some more, being careful not to widen the outer hole.
Once it was through, I threaded it through and then glued the iphone attachment end into place.
Next you need to decide where you want the cord to come out of your camera. I decide the door was the easiest spot, so I drilled a hole in the side of the door so that it would close without crimping the cable. (Sorry I didn't get a photo of this with the door open). I used the side of the drill bit to just drill a little "U" shape in the side of the door panel, and kept trying to close the door until it would close easily. Then I chose to just close and lock the door normally, rather than gluing it shut.
And here is the final version sitting on my desk at work! I love it, and it is both a conversation piece, and something I love to look at when I'm working!