alegorické vozy (literally allegorical vehicles): These parade floats were an indelible part of May Day celebrations. Individual firms and associations might present their wares in the form of live pictures or portray an ideological allegory  - a hydra of imperialism beaten back by the combined forces of the communist party and the labor unions - all complete with the requisite socialist slogans. Similarly memorable for children were the lantern processions (lampionove pruvody) that accompanied these parades.