(Fieldless) A cannon sable. Wilhelm von Homburg (11/2007 West)
(Fieldless) A rocket Or. Luke of Bright Hills (10/2008 Atla)
(Fieldless) A skyrocket tierced per fess gules, argent, and azure, enflamed gules. Aidan MacEgan (10/1998 Aten)
(Fieldless) A wheel-lock pistol Or. Dietrich Eckhart von Katzenburg (3/2010 AnTi)
(Fieldless) On the breech of a cannon barrel fesswise reversed sable a spool of thread Or. Alesone Gray of Cranlegh (1/2010 East)
Or, on a pale between two crescents azure, a rocket Or. Luke of Bright Hills (10/2005 Atla)
Per fess azure and gules, a bow fesswise and a handgun Or. Brian Logan the Bowyer (5/2007 Calo)
Per pale engrailed argent and gules, a pole-cannon azure hafted sable enflamed gules and a quarrel Or. Karl bogsveigir Thorgeirsson (3/2010 Anst)
Purpure, a rapier and a musket in saltire and on a point pointed argent an open book sable. Malise of Sundragon (1/2004 Aten)
Sable, a bend sinister bretessed Or between an abacus and a lit skyrocket bendwise argent. Iames of Mann (7/2004 Outl)
Sable, eight oars in annulo handles to center Or and on a chief argent a cannon barrel reversed sable. Fergus MacInnes (3/2009 Aten)