Cracked Molding on Sides of Windshield
 

We just bought a 2006 Volvo XC70. It has the cracked, crumbling, and missing chunks of the drip molding on both sides of the windshield. I just found out that this is a common problem and I thought I would be able to buy the replacement parts but they are no longer available. It's sad to see, frustrating that I can't fix it and I'm not sure what to do when it all disintegrates. I would appreciate any ideas! Thank you.