Here's a Montessori inspired sensory activity. These capsules were collected from our numerous Kinder surprise purchase. Instead of throwing them away, I used them for our sound play.
The last time we played this, I put in different items that make different sounds in each pair. This time, I wanted to make it more challenging by putting in the same item (bells) but of varying number. The kids had to distinguish each sound and find it's match. The kids had fun! Shaking away with a huge grin and an 'Is this it?' expression plastered on their faces. :)
You can use any bottles but make sure they are covered and opaque so that the kids cannot see what's inside from the outside. Have a blast playing this one!