Thanks for playing and the video!
The colored circle has been suggested before. I really like the bright green one since it gives good contrast, but a lot of people have had difficulties in the "slumber party" level so I should experiment a bit. I thought one way to make the player know the kind of fairy when quickswitching, which I will give a try later.
If you don't mind, could you post your stats please? They are found after pressing the red button in the last level a couple times.