Ideal for photographers looking to lessen the amount of gear they're lugging around, the oddly-named Hoocap merges a lens cap and a hood into one ingenious accessory.
Many photographers forgo the use of lens caps once they attach a lens hood to their camera because a hood can drastically reduce lens flare while having the added bonus of providing a little protection. However, most hoods still leave the lens somewhat exposed so the potential for unwanted smudging and scratching persists.
Now, with the Hoocap, you get the best of both worlds with a protective lens cap that can transform into a functional lens hood. Once you extend the cap/hood out from your camera to open the flaps, your camera has a full field of view and unwanted flare-causing light is blocked. And when you're all finished taking pictures, just push the Hoocap back into your lens and give it a twist to lock it in position and keep your lens protected.
The Hoocap sells for about $50 and while it's currently only available for a limited number of lenses, additional sizes are expected to go into production soon.