>>882287And what about MercadoLibre? The interwebz says that is basically your ebay. Just remember, if the prices are too good to be true it is probably fake.
I have no idea what your exchange rate is but for knives that are above flea market tier but not ridiculously overpriced collectors items, look for Gerber, Kershaw, Buck, maybe CRKT. Kershaw makes a lot of cool folders for $20US to $60US. Otherwise you can go meme status and get an Opinel or Mora.