Group game, any number put into groups of 5 (or 6 with one person leading the group out front)
Materials: nico or marker pen
Get everyone to take their socks off and write a large letter on the bottom of each of their feet, one letter for each foot. The ten letters are S T R O E K A B I C. Call out different words for them to spell and they have to cross legs, stretch, and situate themselves in a position so that the bottom of their feet spell the word you called. First to spell the word wins that round. Bake, Basic, Bore, Cart, Tacos, Stack, Carbs, Scab, Oak, Stroke, Brake, Store, Strobe, Eat, Bricks, Sticker, Tricks.
There are a number of web sites that can help with this if you want to use different letters and therefore different words.