Good news, Joel!
On the horn button bezel, I can slip my fingernails under the edge of mine and it pries right off. If you have a pair of kitchen/grilling tongs with silicone ends you could grasp the horn bezel and pull it off that way without using a hard tool and possibly marring the rig or the steering wheel.
Or try grasping the horn ring/bezel with a piece of tool chest drawer liner or something similar to give you a good grip and pry it off.
That's all I've got.