"Chumma-Chum-Chum" on the knotted bridge.

indentOnly one engine (The Boland Belle) is mentioned in B.B.'s original book but any exhibition model railway needs more than one engine -  so what could we call the others?  One of our sillier ideas was that the gnomes would have named their engines after the sound they made going over the joints in the track thus, "Chumma-chum-chum", "Tumma-tum-tum", etcetera.  We leave you to decide whether this was an inspired idea or not...