To make your very own cone of silence, you will need:
1. 2x 1.2x2.4m rolls of PETG plastic sheet. I got mine from Menzels Plastics
for about $30 a roll.
2. A push pin or similar, for making nice round holes in the PETG plastic
3. A pair of scissors, a ruler and a marker.
4. A packet of 100 teeny tiny split pins for joining the whole thing together.
5. A printer or otherwise to help you make a stencil.
6. A second person to make your life easier towards the end.