Instead of numbers write the color word on the bottles. Sort pom-poms by color. Empty each bottle and count the pom-poms. Then record how many pom-poms were in each bottle. Add the two colors together for addition practice.
Wonderful idea by For The Children. "I took pics of the hands of each child in the class and during Back to School Night encouraged the parents to identify their child's hands. It's harder than you might think, as many of the parents found out.