Real Flames
As far as I know you would have to put a spark plug in each tailpipe, make sure you don't have cats, and make sure the ignition source can trigger both tailpipes.
Kinda dangerous for two reasons, one being melted bumpers, two being (and this is why I haven't done it yet) can't control flame length.
I would only do it if I coupld make 6-12 inch flames. If it is random, you could do some damage.
Otherwise I am all for it!
Nick



