Take three little boys, two little sisters, three mums and a dad home on a snow-day. Put them all in the snow. You get a snowman and....
....an amazing igloo!
They thought I was joking when I suggested it, and by the end, most people had retired indoors to have lunch, but Bruce and I persevered, and in the bright warm sun completed a whole room complete with ceiling!
The photo doesn't really do it any kind of justice: