You can drill holes in little Rubbermaid containers and they're bee-proof, but hummingbirds don't like them very much, probably because the holes aren't easy to find. I keep wanting to find a way to glue fake flowers around the holes.
All photos are copyright Akkana Peck,
licensed under a
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC-BY-NC-SA).
Please inquire if you're interested in commercial use.