Werewolf or Monster feet for Halloween or costume: Use an old pair of shoes, some yellow foam from a craft Store, and some Halloween 'teeth' meant for jack-o-lanterns we got at the dollar store. Then later covered it in fur.
A very simple pumpkin with a craft store spider pinned into its 'eye'. Painted and glittered exterior and a piece of Halloween scrapbook paper in the interior. Add a battery operated tea light and you're all set.