I want second the "Steins" idea. I'd love a pewter mug with a good japh on it.
I'd be more interested in products that simply had some obscure perl code on them than pictures or witticisms. Eg, camel code is preferable to TMTOWTDI.
Comment on Re: Re: PM merchandise/icon design quest
Hmm, those who do a lot of CGI programming could purchase the "Lincoln" Stein then ... To make it a good in-joke, it would be a pewter stein in the shape of Abraham L.'s head (that's recognizable outside the US, isn't it? =)
Philosophy can be made out of anything. Or less -- Jerry A. Fodor