Do you think I could create my own sort of hood a pack an extra wallop out of an array of blacklight CFLs?I use screw-in compact fluorescent black light inside a "brooder clamp light" fixture, both from Home Depot The clamp light allows you to clamp the light to a tree branch, or to a stick behind a gravestone, et cetera. The reflector hood on the fixture works very well for shielding the light from the audience and directing it all in one direction, which also means that an ordinary sized CFL blacklight packs a wallop.
This setup is not weatherproof. Do what you need to to keep it dry.
Please see the following: