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

Other days

bounce

Bounce Day
youth

Youth Day
tulip

Tulip Day
ruby

Ruby Day
gum

Gum Day
singles

Singles Day
blanket fort

Blanket Fort Day
bonang

Bonang Day
raise awerness of zeus

Raise Awerness Of Zeus Day
cuddle up

Cuddle Up Day