Oops, it doesn't look like 'titles on first day' is a national day..

Other days

bonang

Bonang Day
tulip

Tulip Day
carpenters

Carpenters Day
pick me

Pick Me Day
lumpy rug

Lumpy Rug Day
believe

Believe Day
get funky

Get Funky Day
one

One Day
blanket fort

Blanket Fort Day
boba

Boba Day