New Product: Portable Holes for Zope
Portable Hole is a way to place a Hole in your ZODB from one point to another. Or to a place to stick objects from another part of your ZODB into.
There are only two restrictions. When using point to point mode, the source must be Folderish.
A Portable Hole must not be able acquire itself. Doing so will cause your universe to collapse. Well actually it checks for this, since Portable Holes have a strong sense of self preservation, and will not allow itself to be created in such a manner.
You can read more about and download Portable Holes here