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

Other days

ponytail

Ponytail Day
bow tie

Bow Tie Day
ormille

Ormille Day
blanket fort

Blanket Fort Day
azonto is acceptable

Azonto Is Acceptable Day
hot chocolate

Hot Chocolate Day
buddy

Buddy Day
me

Me Day
unicorn

Unicorn Day
self appreciation

Self Appreciation Day