i'll try that flashlight thing. Doesn't sound any more ridiculous than me standing in front of my fish tank holding a laptop up to the glass while playing vid's of clowns hosting anemones, (which i may or may not have already done), lol.
I have heard multiple success stories with actually printing a picture out of a clown in whatever you want it to host in the tank.
Tape the pic to the tank buy the nem.. and wait.. Believe it or not.. I've heard it works.
You can also try to chase them in with a net. I heard that works to, but never tried it. Don't have the lights to support a nem yet.