Replacement flags - Making replacement flags

[Max Dutton]

Having relayed 35 yr old paving under our bay
windows, we are having to replace about four that
were cracked. Unable to find similar coloured flags
we can cut, or any of the correct dimension to fill
the gap, I have decided to make four 19cm x 38cm
flags myself. I'm going to use a 4:1 mix of sharp
sand and grey cement, and will colour to get the
right shade of terracotta pink with red Feb Tone
powder. I'll make a mould out of ply and line it with
polythene. I wonder if anyone out therehas done this and can offer any advice or comment that might be helpful?