'Nobody got it' - How Groggs evolved from Mabinogion
The inspiration for the Grogg Shop was not rugby players, but giants from the children's books, the Mabinogion.
John Hughes started producing the original figures in the 1960s, but "nobody got it", said his son, Richard.
But he then put rugby jerseys on them and they quickly sold.
On display at the Pontypridd shop are the earliest Groggs, such as a version of Gareth Edwards from 1969.