Shopping the bazaars is not like a trip to the mall. You'll find items like a dried gourd decorated to look like a pig, a train made out of candies glued together, or even a decorated sardine can with rickrack trim. They've put time, materials and sometimes a big dose of love into their creations. If you can't say something nice, don't say anything at all. If you're shopping the bazaars for ideas to copy, be fair and buy at least one of the items you intend to reproduce.
All sales are final.
Consider your purchases before buying, not after you get home. In spite of their name, bazaars are not an invitation to bargain over prices. If you believe something is overpriced, ask nicely if the price is firm or tell them if it doesn't sell and they decide they would take less, to please give you a call. Then leave your name and telephone number. Most sellers have priced items at what they consider a fair price, and they're looking to make some profit for themselves or a charity.