If you don’t want to run the risk of staining your fingers or hands, put on some gloves.
Next, drop the dye on top of the cream. Make sure to shake the bottle first. If you don’t have a medicine dropper, a straw would work, too. You’d just need to be more careful with how much dye is let out at a time.
When trying to figure out what colors might look nice together, or what colors combined will create other colors, using a color wheel helps a bunch.
In the end, less is more, so be careful of how much dye you’re adding into the cream. You can use however many colors you’d like, but you should probably keep it to about 2 or 3 or less.
Using whatever tool you’d like, swirl the dye into the surface of the cream. Be careful not to press your tool in too deep as that will push the dye to the bottom of the cream which isn’t what you want.
I went ahead and used the bristle side of this paintbrush to give a more speckled effect. There’s no right or wrong way to add dye to the shaving cream, it’s all about personal preference and experimentation!
You can also reverse this technique by creating a larger batch of dyed cream, then add white cream into it.
Another technique for marbling is to create smaller batches of cream with the dye mixed into it, then add that colored batch to the larger shaving cream surface with a small tool.
You’re basically replicating the process of adding color onto a blank surface. Doing this will create more prominent veins in the design and allows you to play around a bit with texture.