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

Other days

youth

Youth Day
lost sock memorial

Lost Sock Memorial Day
camera

Camera Day
brow

Brow Day
kiss a ginger

Kiss A Ginger Day
nail polish

Nail Polish Day
stud

Stud Day
blanket fort

Blanket Fort Day
boba

Boba Day
reading

Reading Day