This user style is based on the Greasemonkey/Tampermonkey user script similar in name (the whole name wouldn't fit here on the userstyles.org form): "MetaFilter unicorn and narwhal buttons with laser kitty (Modern)".

They both accomplish the same thing. I made this for people who can't install user scripts, but can install user styles.

More details/history on the script page:
https://greasyfork.org/en/scripts/7265-metafilter-unicorn-and-narwhal-buttons-with-laser-kitty

Version 3.1: This is actually the first public release of the user style. The versioning starts at 3.1, to match the version of the user script on which it's based)

As of 2016-08-21: Tested to be working in Firefox and Chrome. Should work for all official MeFi themes (Modern, Modern Dark, Classic, Plain).

Credits

This is an update of the awesome script created by https://www.metafilter.com/user/26222, and is shared with his permission. His related archived scripts on userscripts-mirror.org:
* http://userscripts-mirror.org/scripts/show/109153
* http://userscripts-mirror.org/scripts/show/65129
* http://userscripts-mirror.org/scripts/show/63980

The images are from Rhomboid's original scripts:
* Narwhal by cubecrazy2: http://cubecrazy2.deviantart.com/ (the original link is 404: http://cubecrazy2.deviantart.com/The-Great-Narwhal-15457455)
* Unicorn and laser kitty source unknown.