You could bring some nice bath salts…or even some scented Dr. Teals…salt isn’t ‘messy’ like some bath bombs can be. Or just bring a bomb that doesn’t have dye/ glitter/ ‘stuff’ in it. My favorite Lush bomb is Sakura and it’s a white, clean one.
(side note. A few months ago the Lush at our mall was out of every bath bomb except one. I got it. When I used it, I realized why. The center was full of dehydrated seaweed. I’m not even sure how they got that much into one bath bomb. My tub was full of brown seaweed…it was all over me and when I drained the tub,there were about a hundred little pieces stuck all over the bottom. Not the spa like experience I was going for.)