As our selection of free design resources for Halloween winds down, we are just going to mix together what we have left. Here is a vector with a tutorial, some bats photoshop brushes, some icons, color pallettes, and horror fonts.

Halloween Pumpkin Vector and Tutorial from N.Design Studio
N.Design Studio shows you how to make it and provides the original Illustrator file as well.

Bats Photoshop Brushes by wyckedBrush (DeviantART)

Litho Halloween Icons from Iconfactory

Halloween Color Palettes from Color Hunter
With Color Hunter, you can look at existing color schemes made from photos tagged Halloween or upload your own.

Horror Fonts from Abstract Fonts
They have over 90 available. Here is a small sample.