Step 1: Sketch a plan of what you want your creature to look like.
This may not seem so important, but if you don't brainstorm, you might end up with something you don't like as much as you would've hoped.
Step 2: Cut out (in felt material) the pieces you need.
Make sure you don't accidentally forget to cut out two pieces for the body. Try not to make the shape too perfect looking since creatures of the undead aren't perfect looking either.
Step 3: Ready your hot glue gun, needle and thread, and fabric paint!
Sew on the button eyes, and use the hot glue gun to glue down the mouth, teeth, and pants. The fabric paint is for the details like stitches or dripping blood.
Step 4: Start sewing together your little monster.
I like to use mismatched thread so it really stands out. Also, make sure to leave plenty of space for stuffing!
Step 5: Make sure your zombie minion is stuffed.
You can even add a squeaker if you like (which is what I did).