On a sunny day:
1. Spread a blanket on the ground in your backyard to attract the tinkerers
2. Lay out some simple tools, and a few old and broken electronic gadgets and gizmos (we also had a solar robot kit - a birthday present - on this occasion )
3. Wait for the bait to do its job
4. Then spend a very happy hour in the sunshine with two very contented tinkerers. Help with the technical stuff like left-y loose-y and right-y tight-y
Happy tinkering!