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

Other days

kiss a ginger

Kiss A Ginger Day
slime

Slime Day
kiss a brunette

Kiss A Brunette Day
youth

Youth Day
book

Book Day
frozen yogurt

Frozen Yogurt Day
law

Law Day
cat girl

Cat Girl Day
mean girls

Mean Girls Day
bonang

Bonang Day