With “Q Arrows” you can quickly generate an arrow starting from a curve.
Everything is done via a modifier, so the shape of the arrow is configurable by changing the parameters and of course also animatable.

It can be useful for example in the creation of diagrams, schemes and technical animations.
The project includes several examples and 6 sample materials.

Update.
In version 1.0.1 fixed a bug where normals point in the wrong direction.