Challenge 7: Rainbow
http://img27.imageshack.us/img27/1502/yei1.png
http://img841.imageshack.us/img841/2328/wl16.png
http://img842.imageshack.us/img842/3650/7z1o.png
http://img18.imageshack.us/img18/7945/hpae.png
http://img850.imageshack.us/img850/1523/pvlw.png
http://img837.imageshack.us/img837/3967/b951.png
http://img838.imageshack.us/img838/9870/9vci.png