Anybody interested in tracers should know that rimfire tracers are apparently legal in Canada, but I've never seen them for sale anywhere.
They're also "apparently legal" in the USA, not to mention readily available and easily shipped to your door legally in most jurisdictions, should you actually want to buy them:
http://www.jgsales.com/22lr-piney-mountain-40gr.-green-tracer,-50rd-box.-p-4257.html
To address this thread, I've crossed the US Canadian border many times, and I'd like to add a few points here:.
-To my knowledge, I have NEVER been sniffed by dogs on one of these crossings, though I am pretty sure that customs can easily access dogs for sniffing purposes *should they need to do so*.
-Believe it or not, trained dogs actually CAN smell through metal cans. Or more precisely, small scent molecules may pass through metal cans in concentrations enough for dogs to smell them,
under certain circumstances. Think about it, if it were that easy to escape dog scenting, nobody would ever get caught, right?
On dogs and scenting, this is a MUST READ article:
http://www.cannabisculture.com/v2/node/8634
-Body language counts BIG time. If you look nervous, shifty, (or like you have a package shoved up your ass!), customs will spot that and target you for further questioning/searching. This is a big part of what they do, and they're very good at it.
-Customs uses backscatter imaging to "search" your vehicle as you drive by. They can tell if you've got stuff in your trunk, hidden elsewhere in your car, and to some extent what it is. They also have sophisticated chemical/radiation sensors to look for explosives and the like.
-They're mainly looking for weapons, explosives, and "huge" drug stashes. Yeah, they'll potentially bust you over a joint if they find one, but that's really not what they're after. Plenty of people do, in fact, cross the border every day with small amounts of drugs.