David Weber actually wrote a series once where aliens (actually humans) hollowed out the Moon (dumping the material into the sun) to use the rest as camouflage

David Weber actually wrote a series once where aliens (actually humans) hollowed out the Moon (dumping the material into the sun) to use the rest as camouflage for a Moon-sized spaceship hiding from other aliens (actually aliens). It was pretty clearly him taking the p*ss on the entire topic, but it's seen multiple editions and I believe is still in print. I guess there's something about the idea that attracts some people?