A witch may use many different techniques for the construction of her dolls.
Most witches these days create dolls from raw material imbued with purpose, but some still keep the old ways alive by making their dolls from people.
Either way, one has many options.
The weaker a person, the more malleable their form. It is not so challenging to directly transmute flesh to ceramic when one has ensnared some simpering fool or another. The mind will quickly follow its form.
One does not need to physically resemble a doll to be one, however.
When it comes to making dolls of more powerful entities, it can be useful to keep their physical properties intact.
The breaking of a willful mind and the reassembly of it into dollhood is the subject of much literature. Most witches have their own idiosyncratic process.
Some are gentle. Persuasive. Kind, even. They whisper their gentle nudges and slowly coax a mind to where they need it to be.
Not everything is susceptible to such a process, of course, but perhaps they meet with enough success to justify it.
If one has captured a goddess, for example… Ah, what a willful creature a god can be!
She needs to be chained thoroughly. That cannot be overstated. One who is prevented from offering her blessings to her faithful worshippers will be terribly vengeful about her captivity.
One must break her the way one would any other resistant mind. Pain. Control. Unexpected softness. Unexpected harshness. Make her suffer, then comfort the suffering.
No god is as immutable as they would have you believe. The process simply requires more patience.
It is widely understood that to restore a doll to its pre-doll mind is far more difficult and time consuming a process yet. Few ever bother, even if the impulse should strike for whatever reason.
That is surely far more so the case for a doll that was once a goddess.
Nevertheless it is prudent to take the usual steps to reinforce a doll’s ownership.
A permanent collar may suffice, but it is much more satisfying to have one’s new doll brand itself with a mark of its owner. In addition, such symbols have great power over the divine ones.
As with others who have had their minds bent to dollhood without reshaping their bodies, a former goddess will retain some of the same needs as before.
Notably, in this case, its need for worship is fierce and unquenchable.
A witch may find this to be a blessing in disguise! As a doll, it can no longer conceive of receiving worship, but that energy is trivial to invert and redirect.
A witch may find it quite enjoyable to be worshipped by a goddess doll. Its fervent prayers are intoxicating.
A witch may teach it to worship in any way that pleases her.
She may use it in the way she might any other doll in addition to any of the ways a god uses any chosen mortal.
A witch who gains a taste for being worshipped as a god may not be able to stop at one believer.