I keep these cards in a box right by my chair. That way, it's easily accessible so I can grab and we can play.
Here's how you play: Pass out any number of cards to your group. I have 14 kids, so each child gets 2-3 cards and that works just fine. The kids stay sitting and the child who has the first card "A" begins by standing up. They will say, "I have A, who has B? (or whatever letter is on the card)" The person who has the letter being called will stand up and repeat the same process. This continues until the last card is read. My kids LOVE this game because we always time ourselves. We like to beat our previous time. I know yours will love it too! Click the picture for your free copy. This download has the letters in random order and in alphabetical order.
Here is a link for a number I Have, Who Has game. It focuses on numbers up to 30.