I wasn't going to write a review, but I use these floaters all the time and I saw the mediocre review for the woman who put them in the slanted tub. Yes, that is a commentary on her tub, not on the candles. You can put floating candles in a slanted tub, just put them on something like glass plates to keep them separate. It does make the bathroom look and smell wonderful.
Put any color of floater in a mason jar with colored water or pretty rocks. I love using things I already have to create art. There are 20 candles in this pack, so you can do this more than once; I like to line up 5 to 10 jars down the center of a table, dye the water to match the linens and pop in a white floater. They'll burn 4-5 hours so you can light them before your guests arrive and they will burn all through dinner. Beautiful!!!!