Pattern Block Symmetry
Add pattern blocks to this design so that your final object has:
1. Rotational symmetry but no reflection symmetry
2. Rotational symmetry with no reflection symmetry different from 1 (if possible)
3. Reflection symmetry
4. Reflection symmetry with a line different from 3
5. Reflection symmetry with two lines
6. Both reflection and rotational symmetry
Use Copy/Paste from the Sandwich Menu > Edit to make copies of the shapes as needed.