Like any bath bomb, these will hold until you use them. They might be a little more delicate than your store-bought bath bombs, but you can put them somewhere on display because they're cute! I'm keeping mine in my bath bomb bin (yes, I have a bath bomb bin). My best friend's mom gave me this cute tin full of bath bombs for my birthday one year, and ever since then, it's been my bath bomb bin!
Image Source: POPSUGAR Photography / Hedy Phillips