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

Other days

slime

Slime Day
kiss a brunette

Kiss A Brunette Day
gum

Gum Day
my little pony

My Little Pony Day
offer

Offer Day
boba

Boba Day
bubble bath

Bubble Bath Day
first love

First Love Day
get funky

Get Funky Day
nail polish

Nail Polish Day