Argent, a trebuchet proper between a chief embattled and a base azure. Dafydd y Peiriannydd (3/1986 AnTi)
Azure, a catapult, in base three roundels one and two, and a chief embattled Or. Siegfried Berg (2/1997 Midd)
Azure, a siege tower Or, a chief embattled argent. Carl of Wiltshire (3/1983 Aten)
Gules, a loaded trebuchet argent and on a chief embattled Or three towers sable. Tristán Isidro de Alcaçar (8/2006 AEth)
Gules, a siege tower proper within a bordure wavy argent. Adrian Buchanon (6/1982 Caid)
Per bend sinister argent and azure, a fox's mask and a trebuchet counterchanged. Thierry Ingeniator (4/1987 Caid)
Per fess Or and azure, a catapult sable and three fish naiant Or. Riccardo Pugliesi (4/2001 Loch)
Per pale wavy azure and gules, a pallet wavy between a tower argent, portalled to sinister, and a siege tower proper. Adrian Buchanon (11/1981 Caid)
Per saltire gules and sable, a catapult within a bordure Or. Erich von Kleinfeld (1/1984 Atla)
Vert, on a pile inverted throughout between two hounds combattant argent a trebuchet proper. Fergus mac Conal (12/2000 AnTi)
Vert, on a pile inverted throughout between two hounds combattant argent a trebuchet proper. Fergus mac Conal (12/2000 AnTi)