Oops, it doesn't look like 'tulpa day' is a national day..

Other days

ask out your crush

Ask Out Your Crush Day
ruby

Ruby Day
unicorn

Unicorn Day
offer

Offer Day
blanket fort

Blanket Fort Day
self care

Self Care Day
emoji

Emoji Day
my little pony

My Little Pony Day
one

One Day
stud

Stud Day