3dmiX has some interesting time- and pitch-shifting controls which are not immediately obvious. If you hold down the Option key while dragging the end of a sample, you can change its length without changing its pitch. If you Opt+Shift+Drag instead, you’ll change the pitch without changing the length. Try this on vocal samples for some very wild possibilities.
Note: Opt is the right Ctrl key or the left Win key on most keyboards.