Oops, it doesn't look like 'cemetery every memorial day' is a national day..

Other days

slime

Slime Day
self appreciation

Self Appreciation Day
tell a fairytale

Tell A Fairytale Day
self care

Self Care Day
kale

Kale Day
frozen yogurt

Frozen Yogurt Day
blanket fort

Blanket Fort Day
appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day
artists

Artists Day
special education

Special Education Day