Cardboard tubes (Racecourse)

This may be a long shot but can anyone find a use for these cardboard tubes? They are around 150cm long and were previously used to hold upholstery fabric. They are much thicker than toilet rolls, very strong in fact. I thought they could be used to build forts or create a faux forest/log cabin vibe?? Can anyone save these from the skip? 🙏🏽