Mermaid stretchy headband Mermaid stretchy headband Mermaid stretchy headband £5.00 Stretchy headband size: [Choose]0-3 months6-12 months12-24 months2-3 yearsChild (3+) Quantity: at £5.00 each Add To Basket 1 in stock. Soft jersey headband/headwrap, handmade in our gorgeous mermaid print fabric. You can tie the knot yourself, to adjust the size of the headband. Matching clothing is available! 95% cotton, 5% elastane.