Jane Farrall started what I hope will be a great trend when she wrote R is Really Important.
R is Really Important
The book uses 'phoneme deletion' (sometimes called sound deletion), where one phoneme is removed, leaving a different word. The classic test is: What is left when you take /s/ from 'smile'? Answer? 'mile'
Jane made this a fun activity, and I've been exploring it with students. We finally published our first sound deletion book.
T is Terribly Important