I'm more inclined to believe it's a baby-sized horse,
otherwise her children must be enormous.
( Moon Girl Technologies horrendous beanbag, Sat 16 May 2009, 15:38, archived)

their Daddy is 6' 7''
they are huge.
( jenpots, Sat 16 May 2009, 15:39, archived)

what's that in hands?

( Moon Girl Technologies horrendous beanbag, Sat 16 May 2009, 15:44, archived)

big
edit: just under 20 hands
( jenpots, Sat 16 May 2009, 15:45, archived)