I thought it would be fun to solve the exercises in this book using F#. The result is this repo.
This book is out of print. I was able to find a copy in excellent condition for a cheap price (under $20). It was one of those situtations of being "in the right place at the right time", since it's not so cheap anymore.
If you've already read The Little Schemer, you won't get much out of this book. It will, however, help you start thinking about recursive types. For that alone, I would recommend this book (assuming you can find it at reasonable price).
You may also be interested in Peter Krumins' repo. It's more thorough than mine and is written in SML.