Ingredients:

• 1 pack of red unsweetened drink mix (kool-aid)
• 1 pack of yellow unsweetened drink mix (kool-aid)
• 1 pack of blue unsweetened drink mix (kool-aid)
• Lemon-lime flavored carbonated soda

NOTES: instead of kool-aid, red, yellow and blue drinks such as gatoraid, lemonaid, cranberry juice will also work, but the colors may not be as vibrant .

1. Mix the kool-aid according to directions (adding sugar is optional since the carbonated soda may be sweet enough.)
2.  Pour each color/flavor into a different ice cube tray and freeze solid.
3. To serve, pour the soda into clear glasses.  Put 1-2 flavored ice cubes into each glass. 
   Note:  If the soda is too cold, the ice will not have a chance to melt and change the drinks color.
4. As the ice cubes dissolve, the drink will magically change color and flavor.