Cut a leaf from green fun foam and glue it to a film canister. Print the cards, cut and laminate them. Put them in a pile. Have the children pick a card and identify the color and number. Then have the child has to put the designated discs on the leaf. If the child's stack of discs falls over, they are out of the game. The last child with a ladybugs on their leaf wins.
Here is a resource for the stackable discs.