I would love to be able to find fire crackers like these (but smaller) http://bp1.blogger.com/_-sGrGGpUZag/RdFb0ivAC9I/AAAAAAAAAcw/rU38b4iohQE/s320/PICT0006.jpg Of course they would be found in houses, and maybe backroom of pubs, and you need box of matches to light 'em. They work pretty much as a flare, but explodes with one or several loud bangs, which attracts way more zombies to that spot than a normal flare. It would also work as a "deafening" device against intruders who tries to spot you in close combat. If they try to listen for your footsteps, you could just light one of those up and wait for it to start exploding, and then get away from there.