Light bulb socket with plug and plastic covering around it, wooden bowl, light bulb, glass lamp chimney/cover/whatever you call it, rubber balloon, alluminum foil, and a bit of plastic bendable tubing (small, like an inch diameter).
Drill a hole in the wooden bowl big enough for the light socket, put the socket in the hole so that the bulb pokes out the bottom (so you can sit the bowl upside down and have the lightbulb pointing up), put the bulb in the socket, and form out of the alluminum foil a shape that fits over the light bulb and simultaneously forms a small bowl on top. Chop up any of your favorite *plants* and place the finest bits in the alluminum bowl. Then stick the lamp chimney on the bowl/surrounding the lightbulb setup (nice how it expands in the middle-bottom
). Then, take the balloon and cut a small, small hole in the top of hit, *and* cut the rim off the opening. Run the small plastic tubing through the little hole, then stick the newly limber original balloon opening snugly over the top of the lamp chimney. Put your thumb over the open end of the plastic tubing, plug in the light bulb, wait 60 seconds, or untill a fine mist (real fine, you'd be hard pressed to really notice it) starts to really be smoking off of the plant particles. Inhale untill it stops emitting the fine mist.
Shouldn't run you more than $20. Runs off of the principle of this:
http://www.marijuanavaporizer.com/main.html
Edit: Oh, household items. An apple. Take the stem out, use a pencil to poke a hole from the stem to the middle-ish, them poke a hole from the side to the middle and through to the other side. Put the bowl in where the stem was, light it with your mouth on one side inhaling and your finger over the other, once it's burning nicely, take your finger off the other side. and keep inhaling.