The molded piece of material that your food came in is also Custom Foam Packaging. You know, it has molded areas where the individual food packaging fit. It is custom because it was designed to specifically fit that group of food for your gourmet gift to your aunt Sally. The foam inserts inside the case for your cordless drill are also considered Custom Foam Packaging. These inserts are designed for the case and to fit that piece of equipment exactly. There are many types of cases that use this type of Custom Foam Packaging also. Gun cases, camera and video equipment cases. Even jewelry cases use this Custom Foam Packaging. Have you seen the cut out slots for rings and molded spots for bracelets to lay? Even things like targets for bow practice are made of high density Custom Foam Packaging. Styrofoam was developed in 1940 and has been widely used ever since. Of course this spawned many other types of foam and plastics and rubber packaging options but has long held its position as a great packing material. One great thing is that it produces no CFCs or HCFCs known to deplete the ozone layer so it is ozone friendly and they are reusable. It is also highly recyclable! When it is clean and ground it can be reformed, or if put into a land fill produces no chemical reactions. It also is fire retardant and the furniture and other products it is used to protect will often melt long before it does. When it comes to Custom Foam Packaging, styrofoam is ofthen a great choice because of its versatility. If you can think of a style, shape or size, it can be made with styrofoam. Packing peanuts are made of the same material and are highly versatile and light weight which means better shipping costs for you and your customers.