Amazon.com: Standard 10" Angle-Attach Speaker Foam Surround Repair Kit - 2 Speaker Kit - Fits Several Dozen Different Commonly Used 10" Speakers of Different Brands and Models Whose Foams Match The Measurements :
Boston Acoustics Speaker Foam Edge Repair Kit, 7", HD7, FSK-7HD7
Parts Express Speaker Surround Re-Foam Repair Kit For 8" Speaker
Amazon.com: Springfield Speaker 6.5" Foam Surround Repair Kit - 2 Speaker Kit - Compatible with Several Dozen Commonly Used 6.5" Speakers of Different Brands and Models Whose Foams Match The Measurements : Electronics