Most countries have their own currency - coins and notes.
How many different values of coins do you have in your country?
Make a collection of all the different value coins that you have in your country.
Put two or three of each different coin in a bag, shake it up, put you hand in and take a a small number of coins.
What is the total value of those coins?
What could you buy with those coins?
Put the coins back and pass it on to someone else to do the same.