Fancy dress themed bingo night. Dress up as your favourite Granny or Grandad
Bingo balls, bingo cards, pens/markers, prizes - don't forget the prizes!!!
Tell the children the week before to rummage in their grandparents wardrobe for their best frock/braces and arrive in costume and in character the following week. More entertaining than you would expect, especially if your group like any kind of themed fancy dress meeting. You could stretch it into a whole night, by adding sketches & other entertainment