Cortezattic, If you are only concerned with how much sawdust you can create, just hold a 2x4 against a beltsander for a while. Or cheaper yet, find a branch that has fallen down in the backyard. If you are really into sawdust, visit a sawmill. For a couple $, the owner will probablly let you shovel all the dust under the sawmill into the back of your vehicle.
FYI, the title I gave myself for my woodturning business is Senior Vice President of Mulch Production. I may or may not have a salable bowl when I am done, but I will have mulch.
Winton