Place anything that ain't offensive on loved ones grave

I believe that once a plot is purchased then it should be then be the property of the purchaser and by such this should allow them to place any items on the graveside in memory of those who they have loved dear and lost.
I appreciate that maintaining the grounds can become an issue but if the owner is willing to sign documentation to assume sole responsibility of such maintenance then they should be permitted to display items as they wish of course taking into consideration neighbouring resting places and not leaving the boundaries of their own family plot.
It is not a cheap business to bury a loved one and emotionally not an easy one and what makes it a little bit more bearable is being able to create a resting place the family can visit without the threat of having the local authority remove items that have been chosen with love for the departed.
I am sure there are many more pressing matters the local authority could be dealing with than causing upset to families suffering already.