If I recall correctly, and again, this was in high school when we did this, the flavor didnt transfer well at all.
Then again, the pics above are using a **** load of skittles that have been sitting for a while... Might be time to experiment. Hello, McCormicks. Nice to see you Mr. Kamchatka.
I believe they allow the skittles to dissolve completely, should add quite a huge amount of sugar and sweetness.