Where can I find paint that glows in black light and is invisible in regular light?

I’ve been hunting around online for some time now. I need the paint for a dance performance, and the show is fast approaching – time to order. However, I am no closer to my goal of finding that perfect paint. The paint not only needs to be invisible under regular light, but need to be powerful enough to be visible on stage.

Rosco makes several paints intended for stage use, but a pint (smallest unit) of this stuff supposedly costs $90 CAD (way out of my budget). There are consumer options like Clearneon and the stuff that DirectGlow sells. However, many of these products have received negative or no reviews on Amazon and other review sites.

I welcome any advice Flutherites have on this topic. Have any of you used black light paint (invisible or visible) before?