This is the best frisbee EVER!!! It is super tough (even for tug-of-war); flies great, and floats
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Granite Gear Flyer Dog Disc from REI.com
We bought one of those hunting retriever things your trainer suggested from Petsmart. It was bright orange, and only $8.00; Nisha poked a hole in it. If you squeeze the water before every toss it still works.