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

Other days

bow tie

Bow Tie Day
book

Book Day
cuddle up

Cuddle Up Day
gum

Gum Day
singles

Singles Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
unicorn

Unicorn Day
comfy

Comfy Day
bounce

Bounce Day
healing

Healing Day