Oops, it doesn't look like 'hot sausage on bun dressed with a pineapple big shot day' is a national day..

Other days

Blanket Fort Day

Cat Girl Day

Tell Ur Crush You Like Them Day

Boba Day

My Little Pony Day

Polyamory Day

Eat What You Want Day

Nae Nae Day

Unicorn Day

Ask Out Your Crush Day