We examined the spectrum of reflected light for each of the neon papers and plastics shown in Figs. 1 and 2 using a green laser pointer of wavelength 532 nm as an incident light source. We used a 500-line/mm diffraction grating taped to the lens of a Canon PowerShot camera to record the spectra in a dark room. The same was done using a violet-blue laser pointer of wavelength 401 nm as an incident light source. The results are shown in Table I.In most cases the reflected light appears to change color: this indicates that the neon dyes are not just reflecting the incident light since the incidentlight is essentially monochromatic. (We should note here that using a red laser pointer on any of these papers or plastics results in a red reflected dot: no fluorescence occurs in the visible region of the spectrum, although it may occur in the infrared!)