Co-owners of the shop, Karen and Vigen Khatchik and Katerin Pezeshkain, whose recent customers include Angelina Jolie and Johnny Depp, hosted the event to thank the local community for its support over the years.
Visitors enjoyed competitions, raffles, a lucky dip, face painting and more at the celebration.
Karen Khatchik said: "The Toy Station has been part of our family for a long time and we have always aimed to build a strong relationship with our customers.
"A number of families have been coming from the very beginning and we always thank them for their continuous support.
"We have seen a great change in Richmond over the years where other small businesses have sadly closed down due to high street competition and we are very proud that we have been part of a lovely town for all this time."