His toy sack, a bag of holding. The funny hat. A time turner to get to all the kids in the world in 24 hours. The sled, a flying car just like Mr Weasley's, Plus, the Flu Network, what with all the up and down chimneys and such...Harry Potter humor :)
Potter puffs would taste like that popcorn cereal which I seriously want some of now... Weasley wheats would be like frosted flakes. Granger grains would be cinnamon, and horcrux crunch... Well, it would taste magical!
Harry Potter book characters vs movie characters. Don't get me wrong, overall the movies did a great job in even half pleasing three fans, but inevitably some parts of the books has to be sacrificed. The producers couldn't just magically make the actors look identical to their book counterparts.