this site has info on how to do just about anything.
the friendliest forum I've ever been a part of. lots of info.
55-gallon drum turned cauldron stirring witch project + more.
Krough makes amazing sculptures...
This site was the inspiration for my scarecrow prop...
Brewster Yard Haunt
good info on building several nice props, see haunt 101.
scary-terry.com
Site with lots of info on using wiper motors + more.
skullandbone.com
Has a great section on lighting theory and corpsing.