(...) Hey, Kerry, for the next level of play-ability for Harold, try this: (URL) Drill> a hole through the propellor pin, (URL) a 9 volt battery to a LEGO wire, (URL) attach> a LEGO motor, and (URL) away> you go! (A big hit at train shows:-) JOHN (18 years ago, 3-Oct-06, to lugnet.loc.au, FTX)