Trapp I have used those jars from candle science and fillmore you will not be able to tell the difference. They look exactly the same. At least I couldn't tell the difference.
sharona68@comcast.net She does awesome work for me very very reasonable. Have used her for years! Tell her Candy Spencer Candy's Candles sent ya! I told her someone may email her.
I use a larger pour pot with only a little wax at a time to avoid spills plus I have the paper towel handy also! You can scrape the wax of the clamshell containers with your fingernail it comes right off.
I have a fantastic lady who designs and makes mine. She is great! Email me for her email. She has a printing company and makes all kinds fo labels. She does all my work including brochures, etc.