The horn button from one of these will interchange & looks so much less unatractive.
Unfortunately this was the styling theme at the time & other models with 'sport' steering wheels had a similar horn button.
Of note is the fact that the GX steering wheel above will not fit our 1200's as it is a Sunny Excellent wheel.
I believe that the steering column spline size is the larger one that was used on the larger cars with L series engines along with the B310 Sunny.
The only difference in the wheel itself, when compared to the Sunny 1200 GX one, is in the 'boss' or adapter, onto the steering column.
Close, ... but no banana. Bummer.