Need a lens hood for your inexpensive 50mm f/1.8? Try using the paper sleeve from your cup of coffee or espresso!
For the Canon lens, it’s barely large enough to sit on the rotating part of the lens. You’d need to unravel it so its diameter is wide enough, then tape it.
If you don’t mind looking slightly foolish, it’s better than nothing!
Credit goes to Silas Perez for the idea and photo of me — we were hanging out at Starbucks the other day.
All Narfed Up 