I saw this idea on Pinterest and thought that I could recreate it with some black and brown fabric paint.
I washed the t-shirt and ironed it first so there wouldn't be any shrinkage.
I then basically free-handed the image really lightly in pencil, put a piece of card in the t-shirt between the two layers of material so there wouldn't be any bleeding through and then just painted the guitar on!
I used masking tape to mark off where the frets go so they would stay white.
Once it had dried, I covered it in a tea towel and ironed it to seal the image in.
The dad of the baby this is for is a guitar player, so should hopefully like it!
Oh, I've also got a t-shirt for age 4-6 months so that the poor newborn doesn't always get its arm pulled out to be played as a guitar!