Oops, it doesn't look like 'post your plate day' is a national day..

Other days

lash

Lash Day
latina equal pay

Latina Equal Pay Day
blanket fort

Blanket Fort Day
promposal

Promposal Day
one

One Day
lumpy rug

Lumpy Rug Day
boyfriend

Boyfriend Day
kale

Kale Day
ruby

Ruby Day
first love

First Love Day