DIY Surprise Inside Bath Bombs

Lately, it seems like everyone and their cousin has started to make bath bombs. In the last several years, there has been a surge of companies that produce bath bombs and individual hobby creators like myself. 

With so much competition in the market, it’s no wonder that bath bomb manufacturers have been looking for ways to make their products stand out from the rest of the herd. Some companies are attempting to differentiate themselves by adding surprises to the centres of bath bombs. According to the Bath Bomb Guide, this growing trend is referred to as “bath bomb embeds.” 

Bath bomb embeds are typically placed in the centre of larger bath bombs to add an element of satisfaction, excitement and surprise. There are numerous different types of embeds, including extra fizz, changing colours, a complementary aroma, or even a gift. To this end, one company,, has been making a name for itself by using unique embeds such as jewelry, rings, charms, pearls, cash, toys, and zodiac paraphernalia. 

For my post today, I thought it would be fun to try out this fad for myself. For my embed, I chose to use a small rubber duck figurine. 

Ingredients for DIY Surprise Inside Bath Bombs.
Ingredients for DIY Surprise Inside Bath Bombs. Image by Hannah Neufeld (2021).


  • 1 cup baking soda
  • 1/2 cup citric acid
  • 1/2 cup Epsom salt
  • Colouring pigment* – optional
  • 2 tablespoons apricot oil 
  • 1-2 teaspoons water
  • 15 drops essential oil or soap fragrance of choice
  • Embed of choice


  • Bath bomb mould
  • Mixing bowl
  • Measuring spoons & cups
  • Whisk
  • Spatula


  1. In a bowl, whisk baking soda, Epsom salts, and citric acid together. Set aside. 
  2. In a separate bowl, combine apricot oil, essential oils, and water. 
  3. In another container, combine the apricot oil, water, and essential oils. 
  4. Depending on how many different colours you want your bath bomb to incorporate, separate your base mixture into different bowls. 
  5. Add chosen colour pigment(s) to each bowl, mixing thoroughly to ensure even colour distribution. Your mixture should now have a consistency that is comparable to packing snow or wet sand. It should stick together when pressed between your fingers. 
  6. Start filling bath bomb moulds, alternating between colours as desired. Fill both halves of the mould until they are overflowing, leaving some room for your embed. 
  7. Insert your embed of choice and firmly press both sides of the mould together. 
  8. Allow your bath bomb to harden for at least 8-12 hours before using. 
  9. Enjoy! 
Finished DIY Surprise Inside Bath Bomb.
Finished DIY Surprise Inside Bath Bomb. Image by Hannah Neufeld (2021).

I hope you have enjoyed this recipe. Don’t forget to fish your chosen embed out of the tub before draining your bath, or else you could risk clogging your pipes.

Check out this video tutorial of me making my DIY Surprise Inside Bath Bombs.

Video tutorial by Hannah Neufeld (2021).

I look forward to hearing what embeds you use in your next bath bomb project. As always, happy bathing, folks! 


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