Oops, it doesn't look like 'bouillabaisse biscuits and gravy day' is a national day..

Other days

ponytail

Ponytail Day
self appreciation

Self Appreciation Day
blanket fort

Blanket Fort Day
prescription drug take back

Prescription Drug Take Back Day
self care

Self Care Day
polyamory

Polyamory Day
donate your hair

Donate Your Hair Day
eat what you want

Eat What You Want Day
fiancee

Fiancee Day
boyfriend

Boyfriend Day