> I know about Schleicher's fable,
> "The Sheep and the Horses",
> and I could swear that I've seen
> Aesop's "The Wolf and the Lamb"
> rendered in PIE somewhere on the web
> -- I just can't remember where.
There is also another text in PIE,
about the king and the god Varuna,
based on a short extract from Old Indic literature.
See
http://www.cogs.susx.ac.uk/users/geoffs/FAQ_PIE.html
IMHO the knowledge of both the vocabulary and grammar
is enough to write texts in PIE,
but alas AFAIK no loremaster published yet on his webpages
a comprehensive "Teach yourself ProtoIndoEuropean" textbook,
impatiently awaited by the public.
P. A.