A cup-shaped body comprises a circumferential wall and a first end wall. The first end wall comprises a deepened portion, forming a first recessed space. The first end wall further comprises a projection protruding from said deepened portion into said first recessed space. The body is formed such that identical specimens of the body are slidable into one another. The deepened portion is formed to comprise abutment structure having an abutment condition in which the extent of said slidability of a first one of said specimens into a second one of said specimens is limited.