Years ago I was in a gallery show with Mineko Grimmer, who makes sound sculptures of pebbles frozen in ice. As the ice melts, the pebbles drop into a pool or a wooden lattice and make irregular sounds.
I made my own version entirely out of things from my junk drawer: marbles, squashed pennies, old keys and dog tags, and some acorns I was saving in a tiny jar. What does it sound like? I won’t find out until the weather warms up.