A lady I used to work with did sewing for people...(of course it was mostly clothing)...She charged $3 per pattern piece..and then $3 an hour for her work...so if something had 4 pieces...and took an hour...the price was $15. She figured she didn't make a lot...but at least was paid for her efforts. It is hard to know what to charge...I've been burned more than once..in only being paid for the cost of the fabric....(I don't learn quickly!! LOL) So speak up...your time is valuable...in addition to the cost of the fabric/supplies.