I've done knife hits. I've tried the lightbulb. I've built bongs out of random shit. I've used my inhaler as a pipe. I've done all kinds of stupid shit just to get high.

Now, I have a couple of glass pieces, and am going to order a vaporizor soon, so I don't really ever consider building anything anymore. The fumes from plastic/foil usually used for bowls are bad for you....vaporized marijuana smoke is not.