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

Other days

bonang

Bonang Day
carpenters

Carpenters Day
get funky

Get Funky Day
prosecco

Prosecco Day
ormille

Ormille Day
eat what you want

Eat What You Want Day
gum

Gum Day
bounce

Bounce Day
slime

Slime Day
my little pony

My Little Pony Day