Oops, it doesn't look like 'vanilla milkshake ice cream soda hollerincontest day' is a national day..

Other days

Offer Day

One Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Special Education Day

Tell Ur Crush You Like Them Day

Cuddle Up Day

Fiancee Day

Lisp Day

Slime Day

Ruby Day