Bath Toys

Lauryn has quite a few bath now and I've noticed some of them get moldy pretty easily.  I've scrubbed them and I've sanitized them in the dishwasher but it's discourage how quickly it shows up on some things.  I've thrown out quite a few things, like the sprayer toys that you can't get all of the water out, but I wish there was some type of product that would keep them from getting yucky altogether.  I've seen mold removal products but haven't come across anything to prevent it.  Even drying every thing off doesn't work because some toys have crevices I can't get to.  It's frustrating because she loves her bath toys and it's not practical to throw everything out and keep buying new all of time.