FotodioxDesigner Camera Body & Rear Lens Cap Set Compatible with All Canon EOS EF/EF-s Cameras & Lenses - Blue

Initially, I didn't think these were worth buying. They're JUST lens and camera caps, after all. But I've changed my mind because they not only spark up a lens/camera, they're so much easier to see. It might not mean much, but it's already made a small difference for me: I sat one of my lenses down while I needed to get something else from my bag. When I turned, the lens fell off the bench and rolled down a short hill in a wooded area. I found it quickly primarily because of the blue lens cap, which stood out against the foliage.