I receive a box of Grandma's Dollies Quartet ceiling tiles.  These will do my mediuml bedroom with no problems.  Husband is really impress with the look of these.  They came with the 4 tubes of instant glue.  The material is durable, but really easy to cut.  They are flame retardant.  We can not wait until we have time to install them.  It will really liven up the room.