Squirt toys, like the traditional rubber duck, never get dry on the inside. This makes them a breeding ground for mold and mildew.
Tips For Cleaning Bath Toys {Including Dealing With Mold & Mildew}
Cleaning Methods For Preventing Moldy Bath Toys – KeaBabies
SAFE, FOOD-GRADE SILICONE: Made of non-toxic 100% food-grade silicone(PVC and BPA free), which makes it safe for babies to hold and use as a teether.
Baby Bath Toys, iselyn 4Packs Mold Free Bath Toys Silicone Bath Toys for Toddlers 1-3 Bath Toys Non-Toxic Dishwasher Safe Bathtub Toys for Infants
The Scary Truth About Your Child's Bath Toys & How to Make Them Safe! - Simply September
Keeping Kids Bath Toys Clean and Mold Free - Des Moines Parent
There's mold in your kids' bath toys (and that's probably okay) - The Washington Post
How to Clean Bath Toys Inside & Out (Eliminate Mold Easily and Safely)
How to get mould out of your child's bath toy
How to Keep Bath Toys Clean & Free From Mould
Mold Free Infant Bath Toys for 18 Months - No Hole Animal Bathtub Toys, Baby Bath Tub Toys No Mold (Ocean+Spinner) : Toys & Games