No, you're not seeing things, this is a toothbrush and it does belong in the visual index of art paint brushes. A toothbrush is the perfect brush for splattering paint to create small drops, such as spray on a wave or in a waterfall, or texture on a rock. It also has potential for creating weathered rooftiles or shingles. Just be sure to use an old toothbrush for painting, not the one you're currently using for brushing your teeth!
See Also:
• Painting Moss with a Toothbrush
See Also:
• Painting Moss with a Toothbrush