This might be an odd question. It's a logistics issue of mine I'm trying to solve.

Currently I am trying to commute more actively with bikes. In order to make it easier on me, as my commute is a bit long, I want to take a bike to the bus stop and take the bus for the remainder once in a while.

However:

I often have to carry my "little sister", a musical instrument (cello). This is dangerous without a trailer, and I can't take a bike AND a trailer on the bus.


Is there some sort of crazy solution to this, like a foldable trailer?

Thanks