Oops, it doesn't look like 'bash every town to celebrate day' is a national day..

Other days

stud

Stud Day
boba

Boba Day
ask out your crush

Ask Out Your Crush Day
frozen yogurt

Frozen Yogurt Day
bow tie

Bow Tie Day
blanket fort

Blanket Fort Day
ponytail

Ponytail Day
me

Me Day
gum

Gum Day
youth

Youth Day