Does anyone know how to make the fluorescent yellow color for frosting a softball cake with buttercream? Thanks!

The only thing I can think of is using Americolor's Neon Yellow

Thank you so much! I was wondering if neon yellow was something I could just purchase. I will have to order it though. Just Wilton colors around here.

I am so glad someone asked this. I coach varsity softball and I usually make my team a cake at the end of the year and this would be cool to do. THanks.