beast, mouse:3

Argent, an owl affronty and on a chief sable three mice couchant contourny tails erect argent. Pleasance de Coignieres (6/2001 AEth)

Argent, three mice couchant purpure. Lara of Tir-y-Don (9/2000 Atla)

Argent, two swords in saltire purpure surmounted by a lion's head couped gules, on a chief purpure three mice statant argent. Camillo Guinicelli (11/1998 AEth)

Azure, a fess bretessed ermine between three mice statant Or. Étienne the Inepte (11/1987 West)

Or, a lion passant guardant contourny and on a chief gules three rats salient Or. Anekastrasya Bai (9/2011 Caid)

Per pale argent and sable, two domestic cats sejant reguardant counterchanged and on a chief purpure three mice rampant argent. Alesia de Cattemere (3/1997 Caid)

Vert, three mice dormant argent within a bordure argent semy of caltrops vert. Gwenddolynn ni hAilleachaín (8/2001 Meri)