This website contains a link to a technological music instrument based on a synthesizer and weather sensors. The sensors transduce a variety of weather elements into electrical current that is interpreted by a synthesizer live all year long.
This is a great website called wheeldecide.com. It's one of the only "spinner" websites I've been able to find, and it works perfectly for when you've got some extra time with your younger elementary students. I just load up the songs and games they know, and I let one of the students spin the wheel and we sing and/or play whatever song/game comes up. They love it!