Homework help Please?

Okay I'm doing a social studies project. We're suppose to find ten items that we would sell in ancient aztec times. Any suggestions on what I should sell? I already researched it and I wrote that I'm selling food, jewelery, clothes, natural items, travel items, and animals. ( By the way we're not really selling these items we're just writing a paper on it) Do you know any other items I should sell? We're suppose to have ten items. I already have 6 items. Can you find 4 more? Please this is due tomorrow. Or give me websites that will help me, I already researched a couple, but they don't give much information. Please help it's due tomorrow?!