Applications
An "egg crate mattress", while following a similar form, is not used for egg transport. It is a light weight camping mattress which makes use of the dimpled structure to distribute and cushion human weight. This foam structure is also occasionally used in packaging to dampen impact of sensitive material during travel.
Similarly, acoustic foam tiles which help in sound proofing and the limitation of acoustic resonance have a similar form to egg crates. Egg crate mattresses are occasionally used as an inexpensive but poor substitute to acoustic foam.
Read more about this topic: Egg Carton