Wiper pivot seals.

I want to replace the pivot seals on the 72 scamp and the 74 dart but I never had good luck with the kits that you get from Legendary or Laysons they all have those black foam seals that stick out of the body. Is there a peice of rubber tubeing or something better than the foam that can slide over the pivot arm and seal up the hole in the cowl better? What did you guys do?