Oops, it doesn't look like 'guude willies rip day' is a national day..

Other days

youth

Youth Day
blanket fort

Blanket Fort Day
ormille

Ormille Day
cat girl

Cat Girl Day
cursing

Cursing Day
fiancee

Fiancee Day
pumpkin

Pumpkin Day
bow tie

Bow Tie Day
law

Law Day
ruby

Ruby Day