For an event with great public involvement - why not consider building a mosaic?
Any image can be turned into a LEGO mosaic, for which I can supply the necessary bricks, designs and staffing. Each member of your company or the public can build their own section of the mosaic which we will bring together to create the full image.
In May 2012, I broke the Guinness World Record for the largest LEGO mosaic at 143.9 square meters. This mosaic was created with the help of over 2000 families at The LEGO Show 2012 and contained over 560,000 elements.
A great press or sponsorship opportunity, I can include corporate logos or sponsorship into the design. Once completed, the finished piece can be installed as a piece of artwork, or even a carpet!