I thought that the drawstring could be a choking hazard so i replaced it with elastic. The straps are fixed.
Here's an example:
I added the ribbon as embellishment and to be continuous with the straps.
I made a couple more:
I used different fabrics to create a unique piece. I dont use a pattern so each one is always different and unique.
This one is reversible - patterned on one side and plain on the other