Here are some crafts sold at a 100 year old market in Suphan Buri, Thailand:
Yes, most of these items are probably mass produced in Thailand. See the price tag on the picture above? Each item only cost 10 baht (RM1 or less than USD0.30). These items made inexpensive souveniors to buy to take back home.
One of the lanes in the 100 year old market where craft items are being sold- those on the right side.
Below: A lot of these items are exported and sold overseas for a high price. They’re more expensive if you buy from Bangkok, especially if you buy from tourist area but the price is definitely cheaper than if you buy from US or Europe.