You could use the coffee filter idea that was posted earlier this week.
Take your two fabrics right sides together. Use ironed flat coffee filters and sew to fabric. (leave a small opening for turning)
Rough cut the circles
Remove coffee filter
Turn circle
Continue with pattern.
If you wanted to add batting, just add it as a layer when you put your two fabrics together ie batting, fabric, fabric, coffee filter.
Sorry I don't have the link for the coffee filter idea.