I haven't dug back thru all the comments, but has it been suggested that a Centaur might be represented by a tall piece (like a Staunton K's base) with a horse's head on it (like a Staunton N's head)?
Such a piece could become royal simply by adding a cross on top, if desired, as Jean-Louis did with an earlier image he gave (except that in that one, the base was not as tall as for a Staunton chess K, if I recall right).
edit: another possibility is to use the base of the Man, up to the neck, from the picture in the Piececlopedia entry for a Man, and put a horse's head on it.
edit2: a possible issue with any of these ideas is if a horse's head's weight might make such a piece fall down fairly easily; perhaps a slender-sort of horse's head might avoid that.
I haven't dug back thru all the comments, but has it been suggested that a Centaur might be represented by a tall piece (like a Staunton K's base) with a horse's head on it (like a Staunton N's head)?
Such a piece could become royal simply by adding a cross on top, if desired, as Jean-Louis did with an earlier image he gave (except that in that one, the base was not as tall as for a Staunton chess K, if I recall right).
edit: another possibility is to use the base of the Man, up to the neck, from the picture in the Piececlopedia entry for a Man, and put a horse's head on it.
edit2: a possible issue with any of these ideas is if a horse's head's weight might make such a piece fall down fairly easily; perhaps a slender-sort of horse's head might avoid that.