Here is how to create a paper wallet for almost any Cryptocurrency :

1 - Download the WalletGenerator:

https://github.com/MichaelMure/WalletGenerator.net/archive/master.zip

and unzip it.

2 - Turn off the internet connection (To be safe).
3 - Double click on : "index.html" (It'll run on your default browser)
4 - Choose a coin

https://i.stack.imgur.com/fstFN.png

5 - Keep moving your mouse:

https://i.stack.imgur.com/5lUbM.png

until :

https://i.stack.imgur.com/OFEQH.png

6 - Save the private key in an external hard drive or USB.
7 - As a physical backup, print it out and keep it safe.

I hope you like my post, Thanks.