Sketch the necklace strands :)

Use some fabric paint - I used puffy paint to make the "beads"

Set your onesie aside to dry overnight & start making the fabric flowers.
I have a more in-depth tutorial, link in the description :)

Pull out some chiffon & a candle

Cut into different sized circles from small to big, maybe 6 or so is fine

Begin with the biggest one

Light your candle & carefully burn the edges of your chiffon.
The chiffon should curl.

Don't put the tule directly into the flame or it will blacken the fabric, just put it near to the flame.

Stack them up & you can either hot glue them together or stitch them together in the center :)

I prefer to stitch them

Sew in a few beads if you like

Hot glue the flower or make it a broach for easy washing onto the shirt :D