HELP: Drawing Arcs

Huh.   I typed "arc pair grammar" into Google, and the first hit
was a conlang message about how there should be an encyclopedia
entry for arc pair grammar.   Guess that effort failed...?

Anyway, I'm creating a grammar for Kamakawi right now that's
borrowing bits from David Perlmutter and Paul Postal's work, as
well as a theory I was recently introduced to on discourse analysis.
In order to put it up somewhere, though, I have to be able to draw
arcs (preferably with arrows on the end).   I've been fruitless in all
my endeavors.   I can't do it with any of the drawing tools on my
word processor's painting program, and trying to find font pictures
of arcs has also proven useless (and time-consuming).

I've been trying to find a picture of one of the "trees" (I forget what
they're called) for RG, but haven't been able to find any on the web.
(I did find the notes to Andreas Kathol's last class at Berkeley, though,
which I attended.   How bizarre...)   I can find a few examples of what
I'm thinking of in this .pdf:

http://www.stanford.edu/group/nasslli/courses/as-cr-da/apbook-nasslli.pdf

Ahh!   Perfect!   I found a .gif of an explanation of RG, Chômeurs et
tous!    Here's the link:

http://www1.elsevier.com/homepage/sal/ellei/images/grammar.gif

As you can see, these arrows are extremely malleable, yet they come out
looking nice and smooth.   Does anyone know of a font that has arrows
like these, or how one can draw them aside from freehand?   I'd be
extremely appreciative.

Thanks!

[Note: For my purposes, the arcs can be more like semi-circles that can
be interupted if they encounter a barrier, if that makes sense.]

-David
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"sunly eleSkarez ygralleryf ydZZixelje je ox2mejze."
"No eternal reward will forgive us now for wasting the dawn."

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