Oops, it doesn't look like 'Best Franz day' is a national day..

Other days

cuddle up

Cuddle Up Day
fiancee

Fiancee Day
nae nae

Nae Nae Day
artists

Artists Day
brow

Brow Day
self care

Self Care Day
donate your hair

Donate Your Hair Day
ormille

Ormille Day
ruby

Ruby Day
tulip

Tulip Day