It is not exactly a barong, but what is it?

[Conogre]

Here's a similar piece as your first, TVV, which I've often seen loosely grouped and called "baby barungs".
This one has MOP in the front of the scabbard, with a blade thinner than normal for a barung and yet still fully functional and with detail not usually expected in "keepsakes" or souvenier items.
Another possibility that has ocurred to me is for women as "personal protection items", being small, easily concealed and yet ornate enough to reflect caste as is often seen in male weapons.....this may be a stretch, but I've seen similar in european and Ottoman knives, so I keep the option open as at least a possibility.
Mike