As of today there is a "Comprehensive Economic and Trade Agreement (CETA)" between Canada and EU. That means we europeans can buy stuff from Canada without paying customs fee.

So I would like to ask if anybody know of any canadian webshops that ship worldwide.

You could order a lot from Canada already; you just have to keep the total price down to avoid the customs fee, hope they will let it pass or just pay the fee. But shipping costs is way too much to make it worth it.