We show Power Rangers Bath Bombs with Surprise Toys from Japan - \rbra new YouTube Unboxing Video for collectors, babies, toddlers, kids & families\rbr\rbrBath bombs are hard-packed mixture of dry ingredients which effervesces when wet. They were invented by the organic cosmetics store LUSH, which originated in the United Kingdom. They are used to add essential oils, scent and colour to bathwater. They are a form of bath fizzies.