Sometimes you have to just use common sense and go to the PopUp Portal for help in the first place! I've been looking all over online for nearly an hour, scouring every PopUp site online and none of them had this part. Even worse, I couldn't figure out what to call it! So I finally caved, went back to the PPP and did a search and within 5 minutes, I found what I needed and at a very affordable price! I placed an order and they're on their way. Of course, shipping and handling cost more than the product itself, but that's not their fault.Look what I found. This may be it.
Shock Cord Lashing Button