NON battery operated (ie wind up clockwork style) cot mobile / car seat mobile? Anyone?

[Chicinwellies]

My two girls had the most amazing Tiny Love wind up cot mobile that we could tie onto a car seat handle, pram, any where, it sent them both to sleep, every day, til they were out of napping and was literally a godsend. My nephew has arrived and I'd love to see if I could get him one. Has anyone seen one like this ? Thanks