What a fun cake to make! This was for my friends Mom and her two sisters. It was the first time they were all going to be together in years. Cake is Chocolate Espresso cake with fresh raspberry filling and covered in fondant. I used AmeriColor Neon Gels to get all my neon colors. I used a clay extruder to make everything the exact same size. It was a process, that's for sure. After all the decorations were on the cake, I let it dry overnight and then went back and lightly brushed the neon colors with tonic water, making sure that it didn't run or drip. Brushed again about 2 hours later and it glowed under the black light perfectly! So excited that it worked.