We've ladybug and ladybird versions of our fun symmetry worksheets here, each with the option to have a grid (easier) or not (more challenging).
Ladybird Symmetry Worksheet
Draw the other 4 legs to complete the spider on this spider symmetry worksheet. Try to make your drawing a mirror image of the printed spider half.
If your child needs a little extra help, choose the gridded version of our grasshopper symmetry worksheet. The grid will help them visualise the reflection.