Forgetting money, everything has an inherent tangible value (more or less to each person and in differing situations or contexts).  

For example, when we visited Cuba in 2016 I brought little paper American flags which I saved after their use for decorations on the Fourth of July and inexpensive white Rawlings baseballs.

Anticipating its unique value to the Cuban people trapped in their revolution, I offered a flag to our tour guide as a gesture of good will and her eyes lit up and she asked for more.

When we went to a baseball game I gave a Rawlings baseball to a street beggar and his eyes lit up too.  

To close the circle, I traded a few flags for a bunch of valued souvenir CUBA baseballs from a very willing street vendor.  

One man's barter is another man's treasure (pleasure)!