I made this game for K's Tot School with a Valentine's theme but you could make it with any theme you need.
dollar store stickers
blank business cards
Take 2 cards and adhere the same sticker on each card and presto you have cards to play matching games --try Go Fish or Memory. I made 10 pairs but make as few or as many as you would like. You could also turn this into a File Folder Game by attaching one set of cards to the inside of a folder and have your tot match them up.