Wash the bottle thoroughly – Clean the bottle to remove any residue that can cause contamination.Use safety scissors or a cutter carefully – Always cut away from your body to avoid injuries.Wear protective gloves – This protects your hands when handling sharp edges of the plastic.Work on a stable surface – To prevent the bottle from slipping while cutting.Avoid using flammable materials – If you are decorating, use safe adhesives and paints.Dispose of waste properly – Collect leftover plastic and dispose of them in recycling bins.