When I first set it up I told Kit it was a hedgehog and it needed feeding beads on it's spikes. Since then Kit has moulded the playdoh and put the spaghetti on how he wants to.
When Kit was younger I used to always take pipecleaners and beads out on train journeys to entertain him and he has these out at home, with free access and often makes bracelets and necklaces with the pipecleaners and beads. The spaghetti and playdoh was a new way for him to use his beads, and he is engrossed in the actvity. It's also taught him a bit about balance as he had some disasters where he concentrated too much on one stick of spaghetti and the whole thing fell over.