You can find them at most any auto parts store. Rubber nipples work, I have many on my car. Diferent sizes are available for big or small outlets. You really don't have to cap off the BCS, some people just remove it. Make sure you don't throw a code if you do remove it, just leave it hooked up and tie it up somewhere out of the way. Go to Autozone or Advance auto (or what have you) you should have no problem finding them. Buy two boxes - you are gonna need them.
SOLD! Violet, you will be missed.......