I took up archmages's challenge on this forum (http://scratch.mit.edu/forums/viewtopic.php?id=1802) andcompleted it in about a 1/2 hour. The challenge: "Create a program that will generate a random number between 10 and 100 and if the number generated is a multiple of 5 make a sprite say 'Beep' if the number is a multiple of 3 make the sprite say 'Boop' and if the number is a multiple of both 3 and 5 make the sprite say 'Bop'." In addition, if the number is not divisible by 5 or 3, the cat says, 'None!'