The amazon supplier mailed me back. A mauve / lilac border all endorsed with HAPPY 80TH BIRTHDAY DEREK - and in the center - a flying Scotsman steam train .... 7and half inches... its all in edible icing - to lay on top of the cake....
so still room for the mini steam train set on rails with light and sounds - or I could use a big tray - to let it run round its track -
and I thought a candle in the chimney would add to the atmosphere -
I have the champagne - its dressed in a Wimbledon tennis shirt !!!!
He loves tennis too...
He may not want to cut the cake or open the champagne