Oops, it doesn't look like 'parent shoe swap day' is a national day..

Other days

singles

Singles Day
aloxolt

Aloxolt Day
china

China Day
get funky

Get Funky Day
ponytail

Ponytail Day
ruby

Ruby Day
first love

First Love Day
book

Book Day
nae nae

Nae Nae Day
bonang

Bonang Day