Oops, it doesn't look like 'ignore mfs day' is a national day..

Other days

tulip

Tulip Day
aloxolt

Aloxolt Day
ormille

Ormille Day
blanket fort

Blanket Fort Day
polyamory

Polyamory Day
cuddle up

Cuddle Up Day
bonang

Bonang Day
china

China Day
lumpy rug

Lumpy Rug Day
donate your hair

Donate Your Hair Day