A pair of steampunk wings I made. The clockwork works properly, you can see a video of it working here: [link]
EDIT: I've been asked countless times how to make these, so I'm going to give a quick explanation here. The wings are made of thin card, covered in silver metallic vinyl sheeting, which I got from a general DIY store. As this is what most of the questions are about I'm going to find out exactly what it is when I get home from uni (around July sometime).
The clockwork is straight out of a clock with a few minimal adjustments to make the cogs rotate more (I found that when the alarm goes off more of the cogs rotate, and that there was a small part limiting how long the alarm would go off for; once I removed that part, it would go pretty much indefinitely). I can't give much more help on that though since finding that was pretty much trial, improvement and luck.
The rest is fairly straightforward - there's a cardboard sheet attached to the back of the clockwork to stop it digging into the wearer's back and to keep the clockwork going, and fake leather straps attached to that, which are adjustable with a buckle. I was lucky with the clock that I found in that it had places to attach the wings and cardboard (the metal bits on the corners of the clockwork) which were used to attach it to the original clock case. I then used the screws that came with it, and a few of my own, to attach the wings (as well as a bit of glue).
Lastly, the decorations on the wings are silver brads which are glued on, the wire along the top is some soldering wire glued in some nuts and glued onto the wings.
If anyone has any other questions feel free to ask, though I've pretty much covered everything here
EDIT AGAIN: I've made a tutorial! Hopefully any questions will be answered here