--Fabric (can be scraps!)
--Wonder Under (or Steam to Seam) 1 sheet for guitar, 1/2 sheet for tie
--Iron + ironing board
--Embroidery thread to embellish
Step 3: Follow instructions on the Wonder Under to pin pattern to wonder under and fabric accordingly. Cut out! Peel the Wonder Under from the fabric and the "web" part should be stuck to fabric. Place your applique on the onesie. Don't worry it won't stick just yet, so you can move it around until you find a placement you like.