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

Other days

gum

Gum Day
lost sock memorial

Lost Sock Memorial Day
stress awareness

Stress Awareness Day
ruby

Ruby Day
believe

Believe Day
martini

Martini Day
self care

Self Care Day
bow tie

Bow Tie Day
tulip

Tulip Day
law

Law Day