6" Poultry Feeder www.valleyvet.com - $2.95 Product Review: (Little Giant) Galvanized feeder with embossed edge openings. Perfect for baby chicks. RattyRat's Review: This is the cheapest, most fun toy you can get your rats. The openings in the dish are just small enough to prevent your rats from being able to stick their heads in and grab a treat with their mouth, so they have to reach their arms in and try and grab a treat with their paw, and that is very hard for them to do. Just throw some cheerios in the dish and watch the fun ensue. It might take them an entire night of trying and giving up before they are successful, so give them a long time to work with this toy. You can find these chicken feeders at any of your local farm stores like Fleet Farm.