We need to get more advanced weapons concept sketches going, especially the alien tech stuff.
The stun bomb would be similar I guess, with a pin/trigger machanism attached somehow.
I reckon it works like an EMP weapon only it attacks the central nervous system like a taser. So there would be a bright flash and big sparks.
Before people are abducted they remember a bright flash then they are on a space ship. This is flash comes from the Alien Proximity Neuralizer. The device on top detects neural activity. As someone gets closer to it, the neural activity it detects gets stronger untill it is triggered. The device opens up and sends out a field of energized particles that over stimulate the nervous system and temporaly paralyzes its victim. Or what ever. It was this or study psychology, tough decision huh? ::