This is a favorite, I'm glad I can contribute it for the benefit of others because it's been a simple but satisfying song to play. There are a couple recordings of this song and Jeff Mangum sings different lyrics for some of the lines but the chords are the same. G-A-C It's the same three chords repeated throughout, he holds the C chord in a couple places.

For ^GI am an e^Angine and ^CI'm rolling ^Gon the world is all ^Abending and ^Cbreaking from ^Gme (or:through endless revision to say what I mean) for sweetness a^Alone who flew ^Cout through the ^Gwindow and ^Alanded back ^Chome in a garden of ^Ggreen A C G you're riding a^Alone in the ^Cback of a ^Gsteamer and steaming you^Arself in the ^Cwarm shower ^Gspray and water rolls ^Aon off the ^Cround captains ^Gbelly who's talking to ^Atigers from ^Chis cafeteria ^Gtray A C G and your sweet babies ^Acry for the ^Ccool taste of ^Gmilking that milky de^Alight that in^Cvited us ^Gall and if there's a ^Ataste in this ^Clife more in^Gviting than wake up your ^Awindows and ^Cwatch as those sweet babies ^Gcrawl ^A a^Cwaaa^Gy yeah mmm mmm ^Ammm^C dee dee dee dee dee dee dee^G dee A C G A C G

Neutral Milk Hotel - Engine