Cake table ideas?
No , black is for funerals. Surely that can wait a few years. Use Lemon and white and rocket candles on the cake.
Picture from baby to current of the birthday person's life with family friends, interests etc. On my 60th birthday my wife cut out a big cardboard box in the shape of a 6 and 0 and got pictures from family friends (ahead of time - plus what we had on hand) and taped the around the numbers - it was a focal point many people at the party were in the pictures so it was fun.
Maybe decorate it with some beautiful, colourful and fresh flowers.
Happy LXXX Birthday!