For the 2019 drive, we are asking that parcels be placed in a sturdy gift bag (about 12" W x 15" H) and filled with both practical items and treats. A card with a personal note, although optional, is always most appreciated by all seafarers.
While we have no affiliation with the person who made this video, it's perfect for our context. It took our tester 20 minutes to sew a bag using this
How to Make a Drawstring bag video. The only change we suggest is beginning with a piece of fabric that measures 14" x 32" in order to end up with a finished product of 12" x 15".