Baking Soda Sea Art!

Baking soda dough is easy to make, easy to handle, and holds up well. Here is a great baking soda dough recipe and fun craft idea with an ocean theme. Perfect for summer!



  • Baking soda dough (recipe below)
  • Silpat mat or parchment paper
  • cookie cutters
  • round tip needle
  • paint brushes
  • white acrylic paint
  • tropical blue paint or paint color of your choice
  • thick art paper to fit inside picture frame
  • silver nail polish
  • clear acrylic spray
  • E6000 glue
  • newspaper or something to cover your table surface

1. Cook baking soda, cornstarch, and water in a pot over medium heat. Continuously stir until it thickens to a mash potato consistency and starts to come together.

2. Dump out dough onto parchment paper or Silpat and cover with a damp cloth until it is cool enough to handle. *Keep a damp cloth on unused dough to keep it moist while sculpting*

3. Roll out dough into 1/​4″ thick sheet and use cookie cutters to cut shapes or free hand design your shapes.


4. To make the starfish, take the 5 balls and use your thumb and pointer finger to shape and flatten into triangles. Take the triangles and combine them together, pinching the edges on both the front and back into the shape of a starfish. *Very important to smooth out the edges where the pieces connect or you will get seams and lots of cracks* The circles were used to make sand dollars.

5. Start to decorate your starfish. The round end of a pin or the end of a paint brush can be used to make decorate starfish.


6. Sand dollars were made using a circle cutter and decorated using the pin head and a butter knife. The coral was made free hand.


7. Bake at 175F degrees on Silpat mat or parchment paper for 45 minutes to 1 hour. Let cool. *Dough can be air dried for 2-4 days.*

8. While the shapes are cooling, place newspaper or some type of covering on your table surface to protect it from the paint. Then, get creative and start painting. Let paint dry and seal with a clear acrylic spray. You can stop here and use the shapes as is or continue on to make a picture background.


9. If you wish to mount your starfish, you can use a shadow box frame and paint on a sea colored background. This ombre effect is created by starting with the darkest color on the bottom and gradually adding white paint until you get to the top.

10. Once dry, glue the starfish on the background. Place in frame.


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