In-store only. Store locator: http://www.acmoore.com/e-acm.StoreLocator.aspx
As part of its week long President's Sale, AC Moore craft store has the 1" foam brushes for 5 cents each this week. On the homepage, click on the blue Doorbusters link to see the PDF of their sale items. The foam brushes are on the right, in the middle with a red 5 cents circle on it. Other items also on sale!