JHB on OPW has an idea to use the large 1000 m cones. Look for the 3D Christmas tree near the top of the index page. Here is the link. I am not sure if this set would work for the 5000, need to measure it.
Like this idea, I never have thrown the cones away when empty, haven't got to many but figured they could be up cycled for something in the future. thanks
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