Varnish, I really didn't experimented that match with varnish. I just bought two types. Most of my works don't need to be waterproof and this is maybe the reason why they didn't go deeper with varnish. The first one I bought and use it the most is the micro Blaze and this is like to put the shoe polish more or less. This way the product you have is protected from water for example in case you want to make a pair of earrings because of micro glaze is $9 86 cents, and I bought it in Amazon. The second one is clear glossy finish.

And I don't like it at all because I am more amazed person and also because to apply it is very difficult not to leave your fingerprint because of this one is $4 94 cents and I bought it also in Amazon