Yes there is a kind of skelleton inside. The head and the torso include styrofoam balls and they are connected with wires. The legs too include wires which in case of Lyra also pierce some small styrofoam balls while in case of Bon Bon I found that cigarette filters (though I never smoked and am not going to) made a good basis to needle the wool around. Without the wireframes the felt figures wouldn't be posable.