Today I found another pattern, which is absolutely free for you. It is the simplest pattern I have ever seen, but you know what, it is free and it works. Head over to zoom yummy in the following link for detailed instructions and a lot more.
With a little bit of extra work, you should be able make this one fancier. For example you can variate yarn color or add flowers to the slippers. In addition to Zoomyummy, the following is another example how to crochet flowers.