White Glue

Also known as Elmer's, PVA, Aquadhere. Used to attach clear canopies to models until the first time they are inadvertently bumped, when said canopy falls to the Carpet Monster and is either devoured or is stepped on and broken. Usually the canopy is irreplaceable (see The Naughty Box and Bitz Box).

White glue can also be used for various house-hold applications and, as it dries clear can be used to simulate water, or, prefereably, toxic goop.