Easter egg on the
techdays.ru techdays.ru site.
To call the eggs, it is necessary to
hit the tambourine three times in the section
with reports on Windows 7 , in the search bar enter “linux” (works in Mozile, did not check in other browsers).

UPD
1) works from any page of the site
2) Eggs are also called by the words "FreeBSD", "Mac".
3) "Ubuntu" causes the second cartoon