by steam into a violin shape, better is full "hand carved" from a really good Chinese supplier. I bought one from here and it was great quality, not some cheap factory pressed wood knock-off.
Here' s the one I snagged back when they were cheaper linked to my page on it, and he'd just started on EBay. I could sell now for 4-5 times or more what I paid for it.
Same quality, same maker now, for a full size 4/4 violin will cost you starting about $450-500. Here's what's in stock there right now similar to mine.