Reinforce and decorate the container with contact paper.
Find a fun, stretchy sock and cut off the toe. I used a pinking sheers to prevent unraveling.
Finally, hot glue (or use E6000 glue available at fabric and craft stores) to attach the sock around the lip of the container. (Terri stapled her sock on but I couldn't figure out how to make that work.) The students put their hand in the sock to feel the objects inside. I made several so that I can use them with pairs of students. Simple, elegant and earth friendly.