Small self contained waterproof LED assembly

[caveman6]

I am looking to create a very small, (coin battery is the biggest part), led light assembly that needs to have an on off switch and needs to be waterproof or waterproof-able (some type of applied coating). I don't really want to use PCB

I really am pretty new to this stuff but think I get the basic understanding of what a led needs to have it work, but am very unfamiliar with available parts. I can find LED's that might possibly work but the switch is where I'm hitting a wall. Also the waterproofing aspect of the switch depending on the type of switch etc.

Any of y'all have any recommendations?

[t0mpr1c3]

You could try hacking one of those LED key rings for the enclosure.
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