Trace the Halloween candy and then colour it in. Younger children can trace in the channel between the dotted lines using a felt tip pen or crayon. Older children could try tracing on all the dotted lines.
This spider web tracing page is quite a challenge - especiay if you tracing over all the dotted lines rather than in between them! When the kids have traced the web, why not suggest that they draw a spider onto it?
Kids can trace over the dotted lines to make their own picture of a witch's hat and get some good pre-writing practice at the same time! We also have a witch's broom tracing page.