Thanks to GrabCad member Giorgio for posting this sldprt file of the Coke Bottle Cap
Download it here
Thanks to GrabCad member raghulan for posting this sldprt file for a generic pop bottle
Download it here
Thanks to GrabCad member joseph for posting this sldprt file for a milk jug
Download it here
Thanks to GrabCad member Navid for posting this sldprt file for a milk jug
Download it here