Gabriele,
> I am writing to inform you that the Prato Linux User Group (PLUG) has
> set up a specific Paypal donation in order to raise funds for the
> production of at least 500 PostgreSQL t-shirts (on a blue cotton
> t-shirt). Those t-shirts will be mainly for the European groups.
You should just do pre-sales of the t-shirts for EUR 15 each. You'll get a
lot more in advance sales than you will in donations.
--
Josh Berkus
PostgreSQL @ Sun
San Francisco