How to write upside down in Google Docs?

Here is the search list I found by typing internet upside down writing in Goodsearch.com which also benefited my favorite charity.

I know you can use this site to write text and flip it upside down, maybe you could use that, and then copy and paste? I don’t really know exactly how Google Docs works, so I’m not sure if that would work, but it’s worth a try.

Just use the site @mangeons found, but why would you even want to write upside down?

¿ʇɐɥʇ ɥʇıʍ ɯǝןqoɹd ɐ ǝʌɐɥ noʎ op ˙uʍopǝpısdn ʇxǝʇ ʎɯ dıןɟ oʇ ʇuɐʍ ʇsnظ ı sǝɯıʇǝɯos ~

@Narl Yes, I do, it looks god awfull.