Newegg has many different team flags for 5 cents and also team mugs ect.
at large discounts
Link: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100 50014481 40001017&IsNodeId=1&Manufactory=14481&bop=And&SpeTabStoreType=14&Pagesize=100
I have no idea if anything will actually ship at these prices.