You can find this Peg Bag on Etsy.
Peg bag with tie fastening to attach to your washing line. Fully lined with cream lining.
Measurements (all measurements are approximate):
Height ~ 25.5cm (10")
Width ~ 23cm (9")
Depth at bottom ~ 4cm (1.5")
Vintage Pink Floral Pattern Peg Bag with Cream Lining