Guild Wars 2

If I say, for example, make “Quip” but dislike the skin and use another skin from my Wardrobe on it. Do I still get the confetti that shoots out of it or is that only for the skin? If so, if I use the skin on the, hypothetical, new Thief I make, do I then get the confetti even though it does not share the same name as the legendary?

no and yes, respectively.

The effect is tied to the skin.