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

Other days

stress awareness

Stress Awareness Day
buddy

Buddy Day
bonang

Bonang Day
azonto is acceptable

Azonto Is Acceptable Day
lash

Lash Day
coffee

Coffee Day
bow tie

Bow Tie Day
boy friend

Boy Friend Day
nail polish

Nail Polish Day
aloxolt

Aloxolt Day