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

Other days

gallery

Gallery Day
slime

Slime Day
offer

Offer Day
blanket fort

Blanket Fort Day
ride the wind

Ride The Wind Day
frozen yogurt

Frozen Yogurt Day
stud

Stud Day
singles

Singles Day
ponytail

Ponytail Day
self appreciation

Self Appreciation Day