Instead of buying card holders you can easily make these. Take food cartons and cut them into two or three sizes and stick them on. If you choose, you can paint or color them. each carton can be used to sort different items like wedding cards, letters, bills...
the pen holder is made out of a can with it lid taken off. Cover the sides with paper to decorate it. I used a brown paper to cover itonce and the cut uot a pttern in a colorful sheet and stuck it over.