wchilton Posted March 22, 2012 Report Share Posted March 22, 2012 I ran across these last week. Office Depot as a whole series of boxes they call "Really Useful Boxes". They come in a lot of different sizes from a few inches up to file-box size. For use in making molds, these have a nice flat bottom and are externally re-enforced to hold their shape (all square inside with no indents or out-dents). Even the bottom of these has sort of a honeycomb re-enforcement on the outside to keep the bottom flat. Price is not bad, depending on size. Quote Link to comment Share on other sites More sharing options...
