Sorry for taking so long to post info about this I get very behind with my school work and have little time to devote to the site anymore, but I'm trying!
Wes sent me info about a trick and riddle book which was made to go along with the Hostile Ambient Takeover cd, it was sold along with it on the 2004 U.S. tour, more info can be found about it here.
Also for info on the awesome poster series put together for the tour done by Diesel Prints and some of the most amazing concert poster artists out there today check out this thread at gigposters.com, some truly amazing art! They have a great gallery which includes all of these posters, check that out here.
also: from theprp.com:
The Melvins tribute album "We Reach: The Music Of The Melvins" is now eyeing a tentative May 10th release date via Fractured Transmitter Record Co. The effort is tentatively expected to feature Melvins covers done by the Dillinger Escape Plan, Meshuggah, Mastodon, Strapping Young Lad, Keelhaul, House Of Low Culture, Meatjack, Lickgoldensky, Absentee, Dog Fashion Disco, Disengage and Abdullah, among others.