Pick a reasonable mass, a radius and a frequency. Also describe your detector. I'll calculate a signal strength for you.
I couldn't resist. Assume a bar of mass 1000 kg, one meter in length, rotating at 1000 Hz. An order-of-magnitude calculation for the gravitational radiation power output is 10-19 erg/s. I don't care what kind of detector you have, you won't measure it. An electron volt is of order 10-12 erg.