Analog Devices had a line of low cost solid state accelerometers, dual or single axis, e.g. ADXL210, which fit
into about 1 square inch, you could make up a one cubic inch 3 axis accelerometer. However, I haven't looked
at them in a long time, and it appears that some of the products I had looked at are obsolete. Check out Digikey or similar electronic supply houses for one chip accelerometers. Depends if you are rolling your own or not, whether the chip parts are useful.
Some of the RC helicopter telemetry hardware manufacturers might have what you are looking for, say Eagle Tree may have a module for it, they have data logger systems.
Google, man, Google! ;->
L.
"Be not the first by whom the new are tried, Nor yet the last to lay the old aside." -Alexander Pope