Horn yes.
https://www.moto-lita.co.uk/accessories/morgan-engraved-billet-horn-button/?filters=398

Air Bag, not that I am aware of. If this is removed you do need to sort out the warning light this may cause as it is an MoT fail under the current rules.
Also do an H&S risk assessment of the risk of impact on your gob if you do smash things up.

I keep meaning to do it but have never got around to it.


Everyone loves a Morgan. Even me, unless it's broken again.