Oops, it doesn't look like 'panto beard day' is a national day..

Other days

lumpy rug

Lumpy Rug Day
slime

Slime Day
cat girl

Cat Girl Day
frozen yogurt

Frozen Yogurt Day
gallery

Gallery Day
one

One Day
law

Law Day
lisp

Lisp Day
nae nae

Nae Nae Day
china

China Day