This rat tracing page is a fun way to work on pencil control. Younger children can trace between the dotted lines, perhaps with a crayon or marker. Older kids can trace over all the dotted lines for a more challenging task. You could also laminate the page and re-use it using a dry wipe pen.
Here's a challenging rooster tracing page for the kids! As long as they take it slowly and trace either within - or on - the dotted lines, there's no reason they can't come out with a good result.
Trace over these Chinese lanterns for lots of pencil control practice. Younger children can trace between the channel of the dotted lines, using a thick felt tip pen or crayon, or even a dry wipe marker on a laminated copy of the page.