Tram
This is just a random thought, build a 7 1/4 Inch Tram with a coin collector for kids to self-drive on a bit of track.
https://blog.adafruit.com/2012/04/23/how-to-electronic-piggy-bank-video/
This is just a random thought, build a 7 1/4 Inch Tram with a coin collector for kids to self-drive on a bit of track.
https://blog.adafruit.com/2012/04/23/how-to-electronic-piggy-bank-video/