An ape clog, or ape’s clogge, is a large block of wood with a chain attached. It acts both as a perch for a pet ape (to which the chain’s other end would be attached) and as an anchoring weight. The ape clog is a period charge, used as a badge by William de la Pole, Duke of Suffolk, d.1450 [Siddons II.2 231; HB 147].

Rylyn Buchanan bears as a badge: An ape clog quarterly vert and sable, chained argent.