I am in need of some help...due to 2 unsafe shelves I had to toss them. nails were sticking out and edges were no longer safe. I didn't use these so much as storage, as I did for ways to "divide" my classroom into centers. and due to budget cuts, these shelves are not being replaced. Here's where I need help: What are some pieces of furniture or other items could I use for dividers, so that my center areas have good defined space? My budget is very low, so looking to beg, barrow or steal (not really, but need it to be safe and cheap)! Let me know!