I’ve found that Cafepress doesn’t work for my purposes, so I have removed all the items from the store, and removed references from my site. If you still want to buy a drinking songs book or a t-shirt, email me and we’ll work something out.
I am researching other ways to do e-commerce on this site, and expect to have something working soon. Leading candidates are zen-cart and lulu.com. Let me know if you have an opinion.
LayMusic.org 
I was browsing the site (hoping to find the tune for “Benjy Saw The Bear”, actually), and noticed that the link in this post is incorrect.
It should probably go to either the transcription page here: http://www.laymusic.org/music-publish.html or your lulu store here: http://stores.lulu.com/laymusic
Thanks for reporting the problem.
The actual problem was saying “laymusic.com” instead fo “laymusic.org”, but there’s a better .html file for the drinking songs book now, so I put that it.
The Benji lyrics are (from memory):
Benji met the Bear.
The Bear met Benji.
The Bear was Bulgy.
The Bulge was Benji.
We played it from a transcription that someone else did, so I can’t point you at a PDF with the tune.