Sisters (Pleiades) - Constellation
Sisters (North London)
Dials (Brighton)
Tiles (game in India played by two teams, using a ball and a stack of 7 tiles)
Colours of a rainbow (it is a continuum really)
Names of musical notes
Wonders of the World (ancient and modern)
Days of the week
Seven swans a swimming
Soda comes in groups of 6
states
dogs
Pennies
what comes in groups of 12
Arms, legs.
Inches in a foot
gaggle of geese
rugby teams
Case of beer
Pennies