I'm not sure if valve would let you do this, but if you can: try making ti so when you wear this cosmetic you see in third person, the drone doesn't show up because your seeing from the drones perspective.

I wish valve would do more fun cosmetic perks like with pyroland or the mad milk set pre-jungle inferno. I think if this actually worked it'd be a nice change for the community to start making cosmetic sets that give you a bonus perk.