The pattern scanned in the previous post was for Baha Cat's trousers. The pattern can be found on my home page and here are the instructions for it.
I prefer patterns with as little and as easy sewing as possible, so these are not too difficult to make.
Start by folding the fabric right sides together and cutting the pieces using the pattern.
The pieces are mirror image of each other. Turn and sew the lower edge of the pieces first. How much you turn the edges depends entirely on the desired length of the trousers. Use the doll to check the length.
Then sew the inseam and press the seams open.
Fit on the doll to check that the size is right.
Turn the trouser legs right side out and sew the front seam and about 1/3 of the back seam. This is the most difficult part to sew using a sewing machine and you need to be very careful that the fabric stays straight and you only sew the edge without making any extra folds in the fabric.
Turn and sew the edges of the back opening.
Turn and sew the waist. Fit the trousers on the doll to check how much to turn.
Attach a snap. Attach the upper half first, put the trousers on the doll and check where the other half should be placed.
Here are the finished trousers on the doll. These are actually a bit wider than the pattern. You can easily adjust the width of the trouser legs. Just keep the upper part as it is and make the lower part wider or narrower.
These trousers were made of stretchy fabric using the exact pattern that is in the PDF file. They look a bit baggy, because I used elastic band on the waist instead of leaving an opening and attaching a snap.