i found a great way to cut back on all the styrofoam mess from DIY background/ decorations!
http://www.google.com/url?q=http://...t&cd=1&usg=AFQjCNH3NxJwmQVQ1Kmc0KQDJMEW6DKAxA
and http://www.joann.com/joann/catalog_...ASECI&ci_src=14110944&ci_sku=BDH%20N%20157086
found mine at a local craft store for a little bit cheaper, it works great!!
http://www.google.com/url?q=http://...t&cd=1&usg=AFQjCNH3NxJwmQVQ1Kmc0KQDJMEW6DKAxA
and http://www.joann.com/joann/catalog_...ASECI&ci_src=14110944&ci_sku=BDH%20N%20157086
found mine at a local craft store for a little bit cheaper, it works great!!