specialbunny.org. this would be a neat treat to make for gerbils
Drill or cut a 'feeding' hole near the bottom, small enough that your bird's head can't get stuck in it. Next poke or drill a hanging hole in the lid. Lastly fill it with hay or paper shred plus seeds and treats throughout!
Foraging Ball Stack - Parrot Toys & Bird Toy Parts by A Bird Toy
3 Wiffle Stack - Parrot Toys & Bird Toy Parts by A Bird Toy. $6.95, via Etsy.
DIY: 15 Foraging Toys For Birds! I'll have to make some of these!
Rat toy tutorial - Treat Box (Pinata) (by LadyTara on deviantART) #rats #tutorial
Large Indoor Rabbit Hutch And Accessories
Pet Rabbit Ideas... Drill or cut a 'feeding' hole near the bottom. Works for pet birds too.