A few minutes later and the door was protected (perhaps not aesthetic improved).
In the following steps I will show you how it was done.
A few things to note:
This guard when made correctly will only help to reduce the risk of fingers being trapped in a door IT WILL NOT ELIMINATE RISK! - parents still need to remain vigilant and ensure that their children understand the dangers of playing with doors.
Duck tape will wreck your paintwork and wallpaper - if you are concerned then you may need to work out a different method of fixing