Maybe you aren't Jay Leno and you can't afford a Y2K Turbine motorcycle, but you have this crazy desire to listen to the whine and smell the burning Jet A or diesel fuel while you're cruising down the road, ... well, here's your answer. This is a Boeing T-50 jet turbine powered Honda Magna. It's for sale on eBay and he's asking $7000.
The T-50 has 300 pounds of thrust, 400 with the afterburner. The motorcycle is thrust driven but can be converted to wheel driven. The builder seems to be the real deal, he previously built a turbine powered Porsche 928, I'm guessing he spends a lot of quality time out in the garage.
This Honda is a lot cheaper than the Y2K and probably a lot faster than the pulsejet bicycle. Just be careful what's behind you when you spin it up.
Thanks for the tip, Nicolas!
Link: Jet powered Honda
Related: Y2K turbine motorcycle