"Hold it!" said Hermione, throwing out an arm and halting a passing fourth year, who was attempting to push past her with a lime-green disk clutched tightly in his hand. "Fanged Frisbees are banned, hand it over," she told him sternly. The scowling boy handed over the snarling Frisbee, ducked under her arm, and took off after his friends. Ron waited for him to vanish, then tugged the Frisbee from Hermione's grip.
"Excellent, I've always wanted one of these."
Something like a Muggle Frisbee but snarls; available in lime-green.