Aircraft galley carts and methods for their manufacture are disclosed herein. In one embodiment, a galley cart for use on an aircraft includes a body configured to be moved along a passenger aisle of the aircraft. The body can include a one-piece plastic shell forming a first side portion and at least one of a second side portion, a top portion, and a bottom portion of the body. In one aspect of this embodiment, at least a portion of the one-piece plastic shell can include an inner skin offset from an outer skin in a double-wall configuration.