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

Other days

stud

Stud Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
bounce

Bounce Day
eat what you want

Eat What You Want Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
carpenters

Carpenters Day
lumpy rug

Lumpy Rug Day
china

China Day
blanket fort

Blanket Fort Day
girl friend

Girl Friend Day