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

Other days

polyamory

Polyamory Day
self appreciation

Self Appreciation Day
book

Book Day
stress awareness

Stress Awareness Day
brow

Brow Day
singles

Singles Day
get funky

Get Funky Day
boy friend

Boy Friend Day
youth

Youth Day
bow tie

Bow Tie Day