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

Other days

pick me

Pick Me Day
slime

Slime Day
hot chocolate

Hot Chocolate Day
polyamory

Polyamory Day
stud

Stud Day
blanket fort

Blanket Fort Day
eat what you want

Eat What You Want Day
tulip

Tulip Day
buddy

Buddy Day
artists

Artists Day