timboZ
New member
Looks like the same material as egg cartons ant the seller is selling them as sound proofing.
http://cgi.ebay.com/Acoustic-soundp...oryZ3278QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.com/Acoustic-soundp...oryZ3278QQssPageNameZWDVWQQrdZ1QQcmdZViewItem