With little more than a month left before Halloween, if you're intending to set up some underwear-destroying, adrenaline-spiking Halloween props, you're going to need to get cracking. Thankfully the Monsterlist of Halloween Projects has hundreds of how-to guides.
The projects on the Monsterlist vary in skill and commitment levels. Typical descriptions range from "You're going to need two buckets and a hose..." to "Have 32 red LEDs and a solenoid valve from a washing machine? Perfect! Let's get started." Chances are, you'll be able to find a project among the 854 (listed at the moment) that covers your range of ability and ambition.
Although the web site's design is a bit old school, it is functional. The Monsterlist has a basic key which indicates things about the projects listed, such as how new it is, whether or not it's considered an advanced project, if the prop you'll be creating is animated or static, and if the project listing has an extremely detailed guide and/or movies included.
We found a variety of interesting projects ranging from simple, such as using mirrors and a barrel to create the illusion of a pit, to workbench-worthy endeavours like building an outdoor room with a moving ceiling. If you find a particularly novel guide while browsing the list, share a link to it in the comments.