@Dipsomaniac You light the brush on fire by using it on the fire under the cauldron with the witch. Next go to the area with the tub full of chocolate, the 2 unlit red candles, and the mirror. Use the 'torch' on both of the candles and the last white gumball eye will appear above the mirror.
Simple graphics, but it seems that you have potential to make a game with excellent gameplay. Not saying that this one has bad gameplay, but you could make a great game one day.
On the next game you make: Try to add a few more levels and attempt to add varying difficulties as the levels go up. Maybe make a menu screen with a little more objects on it. Such as instructions, credits, play, level select, etc. This will give you some experience in making flash games.
A nice game. I like how you could increase your score by finding and collecting certain things. It was a bit too easy though, so I gave it a 3/5 because it didn't have that much to it.