Oops, it doesn't look like 'lost pet awareness day' is a national day..

Other days

stud

Stud Day
my little pony

My Little Pony Day
boba

Boba Day
prosecco

Prosecco Day
law

Law Day
bubble bath

Bubble Bath Day
gum

Gum Day
eat what you want

Eat What You Want Day
pick me

Pick Me Day
slime

Slime Day