5 days untill my birthday and need help please?

well my 18`th bday is on the 10th and im making it all pink i have no deacoration just balloons and a cake im having a big time party in a big banquet hall and dont really have anything i have 10 tables and im not very martha stuartish at all im not creative what are some fast cheap but not cheap looking ways to dress up the hall thanks for your help