I take it you mean the exploding bits? Afaics these seem to have been given a group no of 30 51 4670 which is 4 exploding bits and also the small piece of rock which sits on the left hand side (which, re-reading your post is probably what you are looking for d'oh).
I have the bit that sits on the side it is one of the exploding bits I 'need' . Thank you so much for your help - I don't know what happened to all our playmobil instruction sheets.....I put them somewhere safe.
I don't suppose you also have a part no. for a quad bike handle bar do you?