They made a short animated film about Faeries with Froud's actual drawings from his book. I think it's from the 80s, but the creatures are adorable. Here is the link to watch it online: It has three parts, the link is just to the first part, but you can access the other two parts from there:
http://www.youtube.com/watch?v=uwNJfs9O8RI
http://www.youtube.com/watch?v=uwNJfs9O8RI