In my experience, everyone likes pictures of money. Here are a few from a short article called \”Striking the Right Note: An inside look at paper money around the world,\” by Tadeusz Galeza and James Chan, published in the IMF journal Finance & Development (June 2018, pp. 60-61).

How many zeros can you fit on a currency note? Yugoslavia managed 11 zeros, but Zimbabwe went to 14 zeros. I don\’t know how many zeros Venezuela has on its currency these days.
Sometimes it takes three paper notes to buy a cup of coffee. Sometimes it takes two notes to buy a car.
There\’s even a quirky little classroom-friendly cartoon video appended to the article on \”The History of Paper Money.\”