I have noticed I have had great success using another co-worker as a metaphorical rubber duck (sometimes intentionally, sometimes unintentionally). It improves my productivity vastly. However, I know that it probably distracts others when I am using them in that way.

That's why I want to buy a literal rubber duck and talk to it. I could do it very quietly and most of my close co-workers use noise-cancelling headphones 80% of time while sitting at their desks. My only concern is other people passing by my desk would think that I am weird. My desk is in an open space and several people pass by it every hour. (however on my floor besides developers we have HR, marketing and people from high up who might be unfamiliar with the rubber duck method).

Is it unprofessional to talk to a rubber duck at the office?