Not instruments of the plucking kind, but qepHom 2019 gave us ngItHel,
a stringed instrument that is played with a ngItHel naQ, a
bow. I guess that it is a class of instrument rather than a
specific one, so a violin and a double bass are both ngItHel.
Presumably, one can also pang the SIrgh of a ngItHel.
Otherwise, I see nothing that obviously touches on this.
As you said earlier, we can't necessarily determine what these instruments are supposed to be just by their puns, but ngItHel written in xifan hol is "fithel", which is an archaic word for a fiddle.
Additionally, the pamphlet from qepHom 2019 suggests that it refers specifically to a violin-like instrument:
"They used one of these [ngItHel] in the production of the opera 'u'." and the accompanying picture shows something violin-sized.
