Love this mermaid rattle by Maileg. A bit pricey, but maybe I could splurge since we are using so many of Henry's baby toys for the twinkles?
READY TO SHIP Rainy day baby mobile / Nursery mobile / Baby crib mobile / Wooden mobile on Etsy, $40.81
Organic Pear Rattles
Organic Baby Toys - Starfish Rattle