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

Other days

carpenters

Carpenters Day
embarrass your best friend

Embarrass Your Best Friend Day
self care

Self Care Day
girl friend

Girl Friend Day
special education

Special Education Day
blanket fort

Blanket Fort Day
chocolate milkshake

Chocolate Milkshake Day
fiancee

Fiancee Day
tell a fairytale

Tell A Fairytale Day
ruby

Ruby Day