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

Other days

bubble bath

Bubble Bath Day
coffee

Coffee Day
fiancee

Fiancee Day
youth

Youth Day
bow tie

Bow Tie Day
aloxolt

Aloxolt Day
slime

Slime Day
pick me

Pick Me Day
buddy

Buddy Day
boba

Boba Day