At a week's notice, Llantrisant Club had an Ice Cream theme last week (I've no idea why!).

Apart from the obvious like Hokey Pokey and Sweets of May, we had a feast of tenuous links and suggestions... Hundreds & Thousands or More, 99 Red Balloons, Whip Jamboree...

It can certainly liven up a night, and is a good way of avoiding complacency in singers.