This gadget might looks a toy for your children, but it is actually a pretty cool and useful tool that helps to prevents tubs from overfflowing.

The starfish bath buddy is meant to attach to your tub at the level where you want the water to fill up to. The Starfish’s alarm will sound once the water reaches the base of the starfish, and its LCD will also display the water temperature.

Retail Cost: $9.99. I think this is a cheap and cool gadget that does a good job.

via ChipChick