  I review some open questions and other aspects concerning the shaping of
planetary nebulae (PNs) and related objects. I attribute the non-spherical
structures of PNs to binary companions, stellar or substellar. I emphasize the
role of jets (or collimated fast wind: CFW) blown by an accreting stellar
companion in shaping PNs and some related objects, and discuss the limited role
of magnetic fields. I speculate that some stars which are leaving the
asymptotic giant branch, i.e., becoming hotter, possess long-term (10-1000
years) oscillations; these may be related to semi-periodic concentric rings. I
end with a list of objects whose shaping is related to the shaping processes of
PNs, from young stellar objects to clusters of galaxies.
