caltrap:4

Argent, four caltraps in cross, points to center gules within a bordure sable. Leonora Kateryn de Provence (10/1992 Calo)

Argent, on a bend sinister purpure between a sun and a mask of tragedy sable four caltraps palewise argent. Drauma-Toki Dagsson (9/1995 Midd)

Per bend sinister sable and gules, on a bend sinister wavy between a horse's head couped to sinister and a battle-axe, blade to sinister, Or four caltraps palewise alternately sable and gules. Ivan the Capable (6/1985 Caid)

Per saltire sable and gules, four caltrops and a bordure argent. Gunter Aldrich vom Schwartzwald (9/1999 Arte)

Quarterly vert and argent, four caltrops conjoined in cross points to center counterchanged within a bordure sable. Gunnar Thorisson (9/2002 Calo)