Oops, it doesn't look like 'friend that is a boy day' is a national day..

Other days

bow tie

Bow Tie Day
stud

Stud Day
lumpy rug

Lumpy Rug Day
kale

Kale Day
prosecco

Prosecco Day
blanket fort

Blanket Fort Day
bubble bath

Bubble Bath Day
pumpkin

Pumpkin Day
offer

Offer Day
buddy

Buddy Day