Halloween is coming, so here are some interesting links to decoration hardware hacks.
Gravesend Inn is an attraction that mainly instead of scaring the audience, it’s meant to inspire high school students to go to college and study technology. CNN has made video report The haunted hotel that breeds engineers. Control Geek blog has lots if information on that attraction and technology behind it.
Shocking Halloween Decoration posting at Hackaday gives tips how to build simple Halloween decoration. Of course you could animate some Halloween lights using a microcontroller and some LEDs, but there are simpler old tricks: Halloween Pumpkin Decoration 2016 video shows how AC powered incandescent decoration lamps can be made to flicker r in a spooky way with fluorescent starter.
For or smoke machine is nice device for Halloween decorations. There are cheap mains powered, but what if you would like to have a small battery powered? Battery Powered Fog Machine Just in Time for Halloween article tells how to build a cheap battery powered fogger using technology from e-cigarette. Read Battery powered fog machine Instructable for detailed instructions (where I found this animated gif).
For more Halloween hardware hacking idea, check other Halloween postings in this blog.