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

Other days

my little pony

My Little Pony Day
kale

Kale Day
pampering

Pampering Day
coffee

Coffee Day
donate your hair

Donate Your Hair Day
bounce

Bounce Day
ruby

Ruby Day
aloxolt

Aloxolt Day
cursing

Cursing Day
nail polish

Nail Polish Day