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

Other days

my little pony

My Little Pony Day
fiancee

Fiancee Day
tulip

Tulip Day
cursing

Cursing Day
nae nae

Nae Nae Day
offer

Offer Day
pampering

Pampering Day
ruby

Ruby Day
camera

Camera Day
latina equal pay

Latina Equal Pay Day