Scabellum

A musical clapper operated by foot.

scabellum

A castanet or wooden sandal used for keeping time. Also known as scabillum.

scabellum

(from the article `percussion instrument`) ...like a sandal, were known in Greece as kroupezai, or kroupala, and were adopted by Rome as the scabella. Other idiophones included bells, cymbals, ...
Found on http://www.britannica.com/eb/a-z/s/38
No exact match found