A thimble is a small bit of metal or leather, worn on the fingertip to protect it from needles’ ends. A common medieval form, dating from the 14th Century, was a pitted brass dome; this form of thimble has been accepted for Society use. Such thimbles are shown being made in the Hausbuch der Mendelschen, c.1480 [Geoff Egan, The Medieval Household: Daily Living c.1150-c.1450, 1998, p.264]; but no examples of their heraldic use have been found. The thimble opens to base by Society default.
Kerry RanAurora bears: Per fess Or and azure, atop a thimble argent a frog sejant affronty gules.
Anastasie de Lamoure bears: Azure, three thimbles and on a chief argent a needle fesswise azure.