Some time ago I bought a tiny motor that can be powered with one or two solar panels. The motor's power is very weak and so it can only be operated with lightweight stuff attached.

For that purpose I designed a little chain carousel that works with this motor.

You can use it standalone or integrate it into a model funfair or railway.

The little seats can be pressed carefully into the chains. If they come loose, add a bit glue there.

Actually only 6 seats/chains/hooks are needed for the model, but my print plates have some extra stuff (spare parts for chains, hooks, seats) in case of breaking any.