finger painting

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The technique of painting by applying color to paper with the fingers.
2. n. A picture made with this technique.

Wiktionary

1. n. The technique of painting using the fingers instead of a brush.
2. n. A painting made using this technique.
3. v. present participle of finger paint.

GNU Webster's 1913

1. n. Creating pictures using finger paint.