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

Other days

lash

Lash Day
martini

Martini Day
pampering

Pampering Day
fiancee

Fiancee Day
cursing

Cursing Day
nail polish

Nail Polish Day
artists

Artists Day
polyamory

Polyamory Day
bow tie

Bow Tie Day
self appreciation

Self Appreciation Day