I tried this once with this HUGE fly. We put it in the freezer but kinda forgot about it... So we tried 'reviving' it in a microwave.
But alas the poor bugger was beyond saving. So I got out my .22 air-rifle and it fitted beautifully down the barrel? Took it into the lounge where everyone was lounging & aimed it at the mantle piece (after aiming it menacingly at everyone else first

)
Then fired the little blighter! It left a splat about 20cm in diameter. Everyone fell about laughing their asses off!! Except for my mates veggie girlfriend who loved flys (...wtf??...) who stormed off and promptly dumped him for not running after her cos he was too busy pissing himself!!!
Damn I hated that bird!!!