These little dinos were made out of cotton print fabric, following the pattern designed by SweetBriar.
Their website has other pattern ideas here: http://sweetbriarsisters.com
They have movable limbs, which I learned is actually quite simple to do. As long as your needle is long enough.
I sewed them by hand because I like that look in toys, but they could be finished more quickly on a machine. A good project if you're homestuck or snowed in.