I want a symbol that it is to $k$ as $\ell$ is to $l$.
I looked at Scott Pakin's comprehensive Symbol's list and used detexify but I have not found it.
EDIT: I found a solution but it is a commercial font: http://www.pctex.com/mtpro2.html#Features_of_MTPro2 the cript fonts look really nice :(


\elland\kay(say). Consider browsing the LaTeX Calligraphic Font Catalogue. – Werner Sep 05 '11 at 06:45