I would not call myself an expert on sushi by any standards. I enjoy it, but it's not something I've grew up eating. Every time I eat it, I enjoy it more and more. I guess you could say it's growing on me. But what I've discovered is that it is so simple to make at home. The kids love the hands-on experience, and we also each get to tailor make our favorite version. When making it at home, I haven't ventured into the raw fish category yet. Something about little hands playing with expensive raw fish makes me a little nervous. As you can see in the photos, we did have leftover cooked salmon that some chose to include. Others of us stuck to veggies alone.
As far as ingredients, you'll need nori, sticky rice (mixed with a few tablespoons of sushi rice vinegar). You can go traditional japanese, or american -- california (cucumber, avocado, crab), new york (salmon, cream cheese, capers). Or you can just let your imagination go crazy.
If you're interested in trying it at home, check out this website, Sushinow.com. There's a great section on rolling instructions. For us it seemed easier to put the nori on the outside, of course you can also flip it and put the rice outside. It's a fun family cooking night, and definitely not as hard as you think.