Now would be a good opportunity to open a package forwarding service or package holding service in a neighboring country.
(That's pretty much the only way to buy goods from German Amazon etc. into Switzerland without paying those unpredictable customs fees.)
To ship a product from Germany (DE) to Switzerland (CH):
The package forwarding service XYZ is a company registered in both DE (as XYZ DE GmbH) and CH (as XYZ Switzerland AG).
You (the customer) order a package to be shipped to XYZ DE GmbH. That company pays the toll on the goods, then ships them from XYZ CH AG to your private address in Switzerland.
This is basically not a different process than normal shipping, except it doesn't require the seller (in Germany) to do toll declarations and pay the exorbitant DE->CH shipping.
Since CH isn't in the EU, those are really big obstacles. A lot of shops in DE just won't ship to CH, or demand upwards of 25€ for shipping (but not tolls - you'll be out another 20€ or more for that).