Just yesterday, I placed an order for a Retaliation Night-Viper from Amazon.com--the US-version of the on-line store.
Now, for quite a while Amazon.com was notorious for offering some cool toys and such, but wouldn't ship to Canada.
Well, that has changed...........mostly.
Amazon itself appears to ship north, but some vendors that offer through Amazon do or don't, depending on their own shipping policies.
The upside is that it's made some items, like the above mentioned Night-Viper easier to find/score.
The downside is price/shipping costs.
The NV was $20, with about $10 shipping--but if you order two, the shipping drops to about $7. if you are okay with that, then it opens up options for finding things.
Bear in mind that Amazon.com offers "free shipping" on orders over $35 USD...........BUT, be forewarned that it's not really "free", because on the check-out tally there's a shipping and handling fee that seems to ring up at $10 or more. There also appears to be reduced shipping options as well, so keep that in mind.