My wife makes labels for her quilts also. She prints out her label, puts it on a light box, and then traces it onto the fabric with permanent markers. The markers she uses are made for fabric are acid free and archival quality. Her quilts usually get washed several times before being given to the recipient and all have been well used and the labels have all stood up well. Anyway, glad you're doing well enough thay you need to think about labeling.

YMOS,
Tony