There are useful webpages where you can find all kind of flashcards in different sizes ready and free to print. These are the some of the links I found more useful.
REVIEW OF ANY VOCABULARY OR ANY TOPIC:
This is a game to play football inside the classroom! There are two teams. The teacher asks one student of each team a question or show them a flashcard. The faster answering the question correctly moves the ball towards the opponent’s net. The aim is to arrive to the opponents net faster than the other team
FREE FLASHCARDS ( on sports and others)