Thanks for sharing your bomb recipe lsg. I've had good luck with the butter bombs but mine tend to sink instead of float. Do yours float? I think I may be packing mine too tight. Bath bombs are still my nemesis . . . maybe one day I will master them.
I did use the linked recipe again today to make some rolled bubble bars. It turned out okay but the rolls are tiny. For me, this recipe seems to work better when rolling out the dough and cutting with a cookie cutter. Still need to do a tub test and see how it performs but it definitely seems to dry quicker than the bubble bar recipes with lots of glycerin.