Is there a song your kids know by heart and sing over and over? Why not make a homemade book using the lyrics as the text?
Finding lyrics to popular songs is easy with a quick internet search. Copy and paste them into a document on your computer, including two to three lines per page. (Try to finish with no more than 10 pages.)
Sit with your kids while they illustrate the book. Tell them to match the words with images they think of.
But the images don't really matter - let them draw whatever they want. Because when it comes time to look at the book later, and read it together, you'll be focusing on the lyrics.
Your kids will already know how to pronounce the words, but by reading them on the page they'll start to connect sounds with spellings. Plus, you can be proud of the book you've made together!