Oops, it doesn't look like 'send nude pic day' is a national day..

Other days

brow

Brow Day
ruby

Ruby Day
frozen yogurt

Frozen Yogurt Day
hiv awareness

Hiv Awareness Day
get funky

Get Funky Day
martini

Martini Day
me

Me Day
slime

Slime Day
self care

Self Care Day
youth

Youth Day