Bubble Bars are a really fun way to take a bath. It's bretty much a solid bubble bath. You simply crumble the bar under running water and the water preasure will create the bubbles.
Monkey Farts Bubble Bar
Most peolpe like to cut them into half or even into 3rds. I like lots and lots and lots of bubbles, so I use the entire thing. For an even more luxurious bath, I use the corresponging soap and drop in a matching Bath Bomb OR create a "Bath Cocktail" by using different scents that compliment each other. I once used a Salty Mariner Bubble Bar with a citrus scented Bath Bomb. The bathroom and my skin smelled soooo good.