Step 6: Place styrafoam rose cones over sensor.
Nest two styrafoam rose cones together, and seal any holes in them with duct tape. The cones will go into the hole with the open end down over the sensor. Cut a small notch on the bottom edge of the cones so the STS-2 cable can freely pass underneath them. Unlock the masses of the sensor and carefully place the rose cone over it. The botton of the rose cones should rest on the square block with the two round blocks and sensor inside them.