Teaching children to enjoy work is one of the ultimate challenges. Of course, like us they will feel best if they see both progress and natural positive outcomes from their work. Learning to imitate work as play is a wonderful next step. The only other thought I have here is that working together as a family has been infinitely better for us than trying to divide and conquer.
Having an outdoor (or indoor!) mud kitchen teaches improvisation and sensory engagement. This set of wooden outdoor play furniture is made in Germany with European playground quality.