Stabilizing a Crocheted Doll

Hi there,
I’d like to crochet a doll that’s about 30 cm tall. Do you have any ideas on how I can stabilize this doll so that it actually stands on its own without any support?
I’d appreciate any suggestions :) 

Hi there too,

I usually crochet smaller dolls, but many larger crochet dolls have a "wire frame" inside their bodies. So, reinforce the arms and legs with wire (wrap the ends with tape). Or there are pipe cleaners—you can wrap them with craft batting to stuff and stabilize the arms and legs while keeping them movable.
Sometimes it helps to just put a piece of cardboard in the soles of the shoes so the doll can stand.
You could also stuff the legs a little more firmly and evenly so no lumps form.

I hope these tips help you out.
Have a nice Sunday