It's easy!
First get three jacks, 4 pieces of plywood, a hinge set, and all the beer cans you can find (findin the best sound will be hard).
You should make a box with a hinged top.
Mount three jacks, one on the floor, and the other two on the walls.
Leave slots open on each wall so you can pump the jacks. Also, stick a microphone through the roof after you've set the can and jacks up.
Stress and record away!
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-Rebel 487th Lil' Bastards
System:
PIII 450
160mb 100mhz SDRAM
Diamond Monster MX300 (sound)
Diamond Viper V770 TNT2 Ultra 32mb (video)
(controls follow)
TM F-22 Pro (stick)
TM F-16 TQS (throttle)
TM Elite Pedals (rudder)