(Sidebar - check out the phone attached to the wall, complete with a dial, and a springy cord)
A big part of toy making - especially toy cars, trucks, airplanes, etc. - is wheels. Our first wheels were made by hand by us using a hole saw. A drill makes a hole, but sort of peels out the the wood from the hole. A hole saw has a central small drill to guide the circular saw, and an outer round saw that cuts a circle.... result - a wheel. Our hole saw had about 6 different saws that could be changed out to create different sized wheels.