They are both naked at home 99% of the time.
Phoebe is strictly flat collars, she has a few nylon and at least one leather.
Orson has a few flat nylon, a few leather, and he also has one prong collar we use under certain circumstances.
We also have an Orson sized harness, and a gentle leader laying around here somewhere that never get used, they were tried and found useless, LOL