The Man and The Wife said: The answer is to just use a lot for sure. And there's a TON of colors on Amazon. We prefer the coloring gels as opposed to the liquid.

Example:

https://www.amazon.com/gp/product/B0025U73V2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Hope this helps!

MasterGoatis said: Any tips on getting more vibrant/deeper colors while making cake batter slime? I see some pretty wild and crazy colors in other posts on here, from people who appear to be also using cake batter. True YCDTOTV green, deep purple (heh), wild blues. MWStore is a tremendous example of what I'm talking about, but I've seen others do it too.

The best I can usually manage is light green, pale blue, etc etc. For reference I've simply been mixing 3 boxes white cake mix and 6 cups water, with household store bought food coloring (20ish drops?). Am I being dumb and just not adding enough? Is the answer just to add a shitload of dye? Or is there something else I can buy? Any help would be so much appreciated.

The Man and The Wife said: The answer is to just use a lot for sure. And there's a TON of colors on Amazon. We prefer the coloring gels as opposed to the liquid.

Example:

https://www.amazon.com/gp/product/B0025U73V2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Hope this helps!