Every birthday party I throw for my kids, I try to find wall stickers/clings to match the theme. Then I decorate the dining room (aka party central) with the wall stickers. When the party is over, I move them to the birthday boy's/girl's room for them to enjoy for the rest of the year. For my son's Mario Kart Wii birthday party, I found great Mario Kart Wii Removable Wall Decorations on BirthdayExpress.com for $14.99. They were the perfect touch for our party decorations!