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

Other days

lash

Lash Day
buddy

Buddy Day
blanket fort

Blanket Fort Day
law

Law Day
camera

Camera Day
singles

Singles Day
bow tie

Bow Tie Day
frozen yogurt

Frozen Yogurt Day
boba

Boba Day
hiv awareness

Hiv Awareness Day