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

Other days

first love

First Love Day
self appreciation

Self Appreciation Day
carpenters

Carpenters Day
cuddle up

Cuddle Up Day
kiss a brunette

Kiss A Brunette Day
me

Me Day
fiancee

Fiancee Day
chocolate milkshake

Chocolate Milkshake Day
embarrass your best friend

Embarrass Your Best Friend Day
self care

Self Care Day