The only other supplies you need is a quart jar & lid, which if you already own then it's free, and some water.
It take a week to grow your sprouts, but if you really like sprouts you could get another jar going a few days after you start your first one.
What I love about growing my own sprouts, besides the fact that is helps ease a vegetable gardening itch during mid-winter, is that my kids can watch the seeds grow and become amazed at how fast they grow and change.
If you would like, you can check out my post last year on Growing Sprouts, and check out the storyboard I made 2 years ago that shows earlier stages of the sprouts growing.
Finally, this is the website I used to learn how to grow my sprouts. It gives easy instructions with lots of pictures. Start today and in a week you could be enjoying your own home-grown sprouts!