Happy Jewish Families
Chanichim sit in a circle, and one person starts by saying "my (relation)'s name is (name", eg. "My mum's name's Sally". If someone else in the circle has a relation called Sally then they would say "My (relation)'s name is Sally", eg. "My auntie's name is Sally". Then everyone shouts "Happy Jewish Families" and the person who's auntie's name is Sally would continue the game until another match takes place. Other variations include that once someone has a match they must not say anything else for the rest of the game, or one I played where you had to join a line and not say anything else..