Read a given text. Find as many synonyms and/or antonyms as possible

Pull a long word from the dictionary, then see how many other words can be made from it.

Start a sentence like "The minster's cat is.." and each student in a circle has to think up an adjective starting with the next letter in the alphabet, ie Angry, Bashful, Curious.

Thinking of a totally mundane event, give students one minute to think up a sensationalist newspaper headline for it.

Practice spelling words.

Read a poem, but have the students ad-lib the last word for each line.

Tell the first few sentences of a story, then ask each student to add a sentence. The last student should complete the story.

Provide new endings to old proverbs. "An apple a day.." "The early bird.." "A bird in the hand.." "Too many cooks.."