Cool. They are powered by 3AA batteries. I don't mind making you a wall-wart supply as well, but it might take me a bit to find some 5V power supplies. Let me search eBay a bit and see what I can find. I'll report back here.
Just for everyone's information, the battery powered versions are in principle a bit safer -- insensitive to power spikes, or to catastrophic failure of their little power supplies. And you can expect 3 alkaline AA batteries to last essentially forever, as the cameras will trigger down to around 3.5v. Should take years to trigger that many times.
I don't mean in any way to inspire fear or anything -- far from it -- and wall-adapter versions are actually a bit easier for me to make, but I will not be buying anyone new cameras if a meteor strikes your book scanner or a power surge blows up a little 5v supply or something.