This a great warmer you can use to recycle any vocabulary or grammar structures I once read while diving on the Internet for ideas. The game is called Bankrupt. Collect the vocabulary flashcards you aim to revise, and stick behind them cards showing an amount of money, like Us$500, Us$ 100 and so on. One or two of them should say BANKRUPT and another DONATION. Stick the flashcards on the board. Be careful students don't see money cards. Divide the class into two groups. Students take turns to choose one of the flashcards, say the item on them, or a sentence using that word, as you prefer. If they say it right they gain the amount of money at the back. If it says Bankrupt, you erase the money they had won, and if it says Donation, that team donates all their money to the other group.