yes. natto is pretty easy. i get starter ("natto-moto") from gem cultures,
www.gemcultures.com. the starter comes with comprehensive directions. briefly:
1. soak and cook beans until soft;
2. drain liquid and cool to body temperature;
3. stir in starter, diluted in flour, and mix well to spread evenly;
4. cover to retain moisture and incubate around 100 degrees F for 6-12 hours; flavor, aroma, and texture will develop over time.
5. enjoy natto plain, in nori rolls, or with veggies and a dressing as a salad.