Doll Making Blogs Crafty Tip
If you want to achieve a very smooth surface before baking polymer clay, give your sculpt a light dusting of either baby powder or cornstarch (less smelly!) You can use your finger for this if you have very steady hands, or a very soft paintbrush for finer details.
If working with paperclay, you can achieve an incredibly smooth finish by using manicurists buffing blocks (soft foam blocks covered in very fine sandpaper) for the final sanding, as they have a grit finer than I've been able to find anywhere. Alternatively, you can rub cotton batting gently over your sculpt to buff the piece and smooth out any tiny bumps. Of course, in some cases, a little roughness or
texture is nice, so trust in the doll; the doll will tell you how she wants to look!