Re: Taxes for the Netherlands.
As far as I know you only have to pay taxes for tobacco, so not for the hookah itself.
If you buy tobacco, and it gets caught at the customs, you have to pay €59 + 19% per kg to get your tobacco, or it just gets destroyed.
But.. this is only for countries from outside the European Union. So if you order from Dubai or the USA, there is a chance it gets caught at customs.
If you order from France, or UK, you can order as many tobacco as you want with no risk, because those countries are in the European Union.
The max. amount of shisha that you can import without risk is 250 gram as far as I know.