Try a search here at eslHQ with the word "kindergarten" and look for posts and threads that may have games and activities.
This website has flash cards. Did you think about flashcards?
Lastly, here's a website that is packed with free resources. It will take awhile to explore it, though. Free Printables for Teachers | flashcards, printable games, worksheet templates, phonics materials, ESL printables, conversational activities