One of my regular clients is Goldfish Swim Schools. I designed a mascot for them a few years ago (Bubbles the goldfish) and they’ve been making steady use of him ever since. The most recent project I’ve done for them is to illustrate a photo standee. Children can stick their head in the little hole and have their picture taken with Bubbles. I’m told you can see it in use if you follow @goldfishswimschool on Instagram.
EDIT: I recently had the chance to travel to Michigan to visit the Goldfish headquarters in person. Here’s how I would look with a true turtleneck: