To sort out an issue with the horn contact I needed to remove the Moto-Lita steering wheel boss, but after perhaps 20 odd years in place undisturbed it really, really didn't want to move. None of my claw type pullers were suitable, and even if they had been it would have been difficult to avoid damaging the boss flange or at least the crackle paint finish.

A simple 'no-mar' puller:-

Screws shown are M5 x 35mm. Using all 9 screws may seem like overkill when 3 might have done the job, but the force required to break the taper was quite considerable and it's not much effort to a drill few more holes.

The original problem with the horn was it didn't work on right hand lock. The brass plunger contact runs half on, and half off, the inner edge of the contact ring. Over the years this had worn a step into the end.

The contact ring sits just proud of the plastic base, but is very slightly tilted relative to it. On right lock the longer part of the step in the plunger was riding up on the plastic losing contact with the ring. (The rub mark in the plastic is just visible upper left.)