How to create "and so on..." snippets, examples, excerpts etc. with lilypond

[Nils]

Hello list,

I regulary create educational music sheets and need a way to indicate that the 
music is incomplete. In the handwriting world there are many ways to do this. I 
only need one :) What is the Lilypond way to do this?
I created some examples in inkscape, attached.

Nils

endofstaff.png
Description: PNG image