This one is easy and has NO PREP! Simply take your flashcards out (the same ones you've been using) and hold them in your hand like you are playing cards. The pictures should be facing you. Let the kids try to remember the name of one of the cards. If they are having a hard time remembering one, you can start describing one of the pictures. Whenever someone says a correct word first, that person "wins" the card. They get to hold onto it until the end of the game. My kids LOVED this game - they loved the competition.
Once the child "won" the card, then everyone would take turns doing some work with that card - naming the item, describing it, answering a question. The cards are very adaptable to every child's skill level. A great way to adapt this for kids who are working on listening comprehension is to hold the cards and start describing one of the cards. Having some exposure to the cards already will help them figure out which one you are describing! This can also be a great articulation activity to break up the drill & practice routine.