Amazon.com : 55mm Tulip Flower Lens Hood for Nikon D3400, D5600 with 18-55MM AF-P DX, DL24-500 f/2.8-5.6 Digital Camera + Microfiber Cleaning Cloth : Electronics
Canon BT-55 Lens Hood (85mm f/1.8 FD, 100mm f/2.8 FD, 135mm f/3.5 Breech Lock FD) at KEH Camera
Et-60 58mm Et60 Lens Hood Reversible Camera Accessories For Canon Ef-s 55-250mm F/4-5.6 Is Ii & Ef 75-300mm F/4-5.6 Iii Usm Lens - Camera Lens Hoods - AliExpress
Canon BS-55 Lens Hood (50mm f/1.4 FD Breech Lock/SSC, 50mm f/1.8 FD Breech Lock/SC) at KEH Camera