I put together this mobile from some postcards of modern art. They tend to be similar to baby-oriented pictures, with their bold contrasting colors, but I like the fact that they were made to be interesting to adults as well. I think this adds something extra, even if baby can’t fully appreciate the art yet. He certainly gets excited by the pictures.
When trying to grab one, he discovered that they would move away from him if he hit them too hard. He started to adjust his approach and tried to be careful. He also chose to use two hands instead of just one, since the other could catch the card if one hand hit it too hard. In any case, he was given the opportunity to make these discoveries because the cards were presented to him in a tricky way.