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

Other days

ponytail

Ponytail Day
ride the wind

Ride The Wind Day
aloxolt

Aloxolt Day
gum

Gum Day
bow tie

Bow Tie Day
brow

Brow Day
hiv awareness

Hiv Awareness Day
kiss a ginger

Kiss A Ginger Day
comfy

Comfy Day
ruby

Ruby Day