I've done the following lately..
a) During ELEGON LFR, I dropped a Blingtron 4k shortly before the ground disappeared and the entire raid died.
b) Before ELEGON LFR, I dropped a Blingtron 4k and dropped a portal to Ancient Dalaran on top of it. 16/25 ended up showing red in raid frames.
While this is fun, can I get reported for faction griefing? Just checking - this is too much fun ^_^ - seeing how far people will go for their gifts LMFAO