I used to have squirty toys but the mould was too gross. I took out the squeaky part of the hole and cleaned the inside with a cotton tip. Pretty laborious and after about the third time I chucked them.

Kids can get really sick from drinking the moldy water so it pays to be vigilant.

I also have to replace the non slip mat on the bottom or our bath. I scrub it when I clean the bath but the mould grows back so quickly. Ewwwwwww