For this game, I put matching Easter erasers into plastic easter eggs. We took turns choosing an egg, opening it, then choosing another to try to find the matching eraser. (Sometimes we each had 2-3 turns to try to find the match)
You can usually find Easter erasers in the dollar store. But you could do something similar, even if you don't have them. You could use matching papers, coins, buttons, stickers.....anything!