Saw a Halloween decoration similar to this at Target for 30 dollars. I recreated it with one Hefty Force-Flex Trash Bag. Granted the one at Target was a little cooler but mine was next to free. It only took like 10 minutes and it looks pretty spooky :)
Scary Monster on the Ceiling This super-creepy monster is deceptively easy to make. Combine a scary mask and old wig, an old night gown, and some wire hangers in a person-shape. Suspend it from the ceiling with fishing line.