To improvise use a piggy bank and real coins! Separate the pennies, nickels, dimes, and quarters and let put the coins in. You can even have a bottle ( i used a glass milk bottle) you can use any food plastic bottle or cup. Keeps them entertained.
An excellent food preparation area created on the bottom shelf of the pantry at home. Learning to prepare food, clean up messes, and be independent while feeding yourself are amazing steps in Montessori Practical Life.