A chili powder bottle cap with an evil smile. The top snaps to the bottom part. The top can then be turned from closed to a large or small opening.

This cap fits the 'Verstegen' spices bottles with the red cap commonly sold in the Netherlands (also sold in the UK and Belgium i believe). You'll have to adjust the threads to make it fit other bottles...

Let me know what you think. This is my first project, so i can use all feedback.