Use an editable sign from Etsy to give instructions.
or a standard iron to remove wrinkles and pre-heat the fabric for better adhesion. Printable Baby Onesies Template
You can set up a "Decorate a Onesie" station using these templates: Use an editable sign from Etsy to give instructions
Personalized 'Make A ONESIE for baby 'name'' Printable 8x10, 11x14 Sign Baby Shower Digital File Chalkboard Decorating Station. 12 DIY Baby Onesie Templates to Celebrate All Year Printable Baby Onesies Template
Files compatible with cutting machines like Cricut for vinyl application.
Position the design roughly 1 inch down from the neckline or center it between the shoulder seams. Printer Settings: