We are gonna say it like it is: This is fucking stupid.
1. The amount is so small it doesnt even matter/is worth shipping such a long distance.
2. Canada to EU? For 450g of weed? What??
And now that we shitted on you we will give some advice.
So 450g of weed is ship-able if you have a way to hide the smell. What we recommend is shipping it in food cans/tins. Find a way to put the weed in the containers along side actual food and boom smell proof containers.
Second: actually getting the cans to the EU. Find any international shipping company that delivers by SHIP (not by plane) that doesnt check the contains of the packages and boom you now can do what you wanted.
Notes:
1. Dont do this, 450g of weed is not worth it.
2. Dont do this, what we just said about food cans is stupid and not well planned.
3. Dont do this, you are asking about advice on a subject which is always evolving and old methods get "patched" and so do your own thing. Use your brain dont ask other, its stupid and lazy.
4. One pound of weed is not worth the wait, for something to arrive to the EU from Canada would take link a month, at least and then another two weeks for it to arrive at the customer. Simply stupid and slow.