I've bought my Tombo Aeroreeds direct from Japan. Here in North America, Tombos aren't "officially" imported but the deals from eBay or amazon third party sellers are often really good. They are usually available with free shipping or very nominal shipping. I think I even bought a Manji direct from Japan.
Of course, in Canada, the government can't be bothered to collect tax or duty. This is the great advantage of living in a GIANT country with a widespread population. The authorities are so busy looking for drugs that just about everything gets a pass.
"Hey Bob, where are the tax and duty forms for this stuff?"
"What have you got?"
"It a box of harmonicas"
"Harmonicas? Geezuz...don't waste time with friggin' harrmonicas. Get them out of here. We're looking for methamphetamine."