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

Other days

china

China Day

tell ur crush you like them

Tell Ur Crush You Like Them Day

hoodie

Hoodie Day

coffee

Coffee Day

prosecco

Prosecco Day

Emoji Day

lisp

Lisp Day

lumpy rug

Lumpy Rug Day

book

Book Day

embarrass your best friend

Embarrass Your Best Friend Day