Where can I find Harry potter single bed quilt cover sets in the USA?

Hi, I am a thirteen year old girl redecorating my room and I am looking for a harry potter theme. All I am looking for at the moment is Harry Potter bedding. The only problem is that every thing good I find is from Australia. The problem with that is that it is on Ebay's buy it now and they are soo expensive and plus the shipping is like about 20 dollars or more. Can anyone help me out on where to find less expensive Harry Potter bedding? Plus, If anyone can help me find a wall mural From a real life scene of the fourth or fifth movie. Thanks. Bye.