3R on Large-Scale of Event/Exhibitions Decorations

In the Year 2017, the Environmental Protection Department (EPD) has released “A Waste Reduction Guidebook for Large Scale Event Organisers” (the Guidebook); part of it is to promote on how to reduce wastes after Large Scale Events/Exhibitions. As an organizer & exhibitor; it is time to think on how to REDUCE the use of those non-decomposed decorative materials? How to REUSE the decorative items/materials instead of just one time only? How the decorative items/materials not just to end-up in our landfills but can RECYCLE after?