[Eeyore]

Here is the thing about those smoke grenades, yes they are legal, yes you can buy them but no they arn't worth buying unless you buy a large amount. Why? Because the few shipping companies that will transport them charge a hazmat fee to do so. Usually in the range if $35-40 plus whatever the shipping price is.

So a Tactical at say... $13 will cost you around $60 just for a single. Obviously if you buy in larger amounts then that fee gets evened out but still.