Hi,<br>I have discovered a simple cheap signal mirror in the form of cut-down CD-ROMS that are cut to credit card size and often distributed at software trade fairs with some info about the company and or products from that company on them.<br><br>These come with an central hole that although it's bigger then needed for a signal mirror still allows you to target the sun and create a "target spot" that I can get to bear on a distant target.<br><br>The last time I visited an computer trade fair I collected these credit crad formed CD-roms and passed them on to my scouts as a simple cheap signal mirror.<br>They always seem to come in a thin clear plastic cover much like the credit card sized fresnel lenses come in. By the way both fit together in one cover, that saves some space.<br><br>Best Scouting wsihes from Holland,<br><br>Bagheera<br><br>