http://tf2chan.net/cosplay/res/8.html Very useful thread
http://www.ehow.com/how_7804905_make-pyro-costume.html eHow guide
http://www.brbuninstalling.com/forum/index.php?topic=4978.0 Good organized guide
http://www.etsy.com/listing/104831181/pyros-pink-flower-purse Pyro's purse on Etsy
http://www.viccouniforms.com/Red-Kap-100-Cotton-Coveralls-CC18-Zip-Front.html Red coverall, front zippers just need to be taken out. Blue ones are much easier to find!
http://www.etsy.com/listing/91552139/team-fortress-2-class-emblem-choose-one Class emblem patch (the shop that I bought my patches from is closed right now, will update tomorrow when they re-open after a convention.)
http://www.ebay.com/itm/271014474101 UnderArmour heatgear balaclava for under the gas mask
http://www.etsy.com/listing/105998356/green-brain-slug Triboniophorus Tyrannus (If you want to use it for your costume you probably will have to attach it to a black headbac