Since today is the 20th anniversary of the fall of the Berlin Wall, I am reminded of the story a German friend of mine related to me. He was living in West Berlin at the time with his parents. Once they saw on television that the wall was literally coming down and people were taking pieces of it as souvenirs, his mother decided it would be a good idea to have one. So she sent my friend and his father begrudgingly down to the wall in order to hack off a piece for posterity.
The two of them realized this was not necessarily going to be an easy task and involved more physical labor than either cared to provide at the moment. (Remember this is a serious wall designed to keep people at bay for years) Fortunately, once they got down there an enterprising young man had already done the work and had set up a table in front of the wall selling pieces of the wall. They decided to just pay the man and took a piece home and never told his mother where they got it.
When given the opportunity, people will find a way to provide services that benefit everyone involved in the transaction.