i actually have a Abe's Oddysee 'official' shirt. well, two really, but one's pretty beat up.
the first one has this pic
on it, while the other has this pic on the front
both front images are pretty big...and on the back it has the abes exoddus logo too.
i got them out of the catalogue that was in the back of the AE instruction bookletAnd yeah they ARE closed down, but you can prolly find some odd shtuff on Ebay.