I thought maybe they were trying to recreate the Japanese balloon bombs
We should respond with the dreaded Peenemunde bomb!
Late in The Big One, the Germans constructed a fake airfield near the northern city of Peenemunde. A standard tactic, it was used by both sides (we had a whole fake fleet and aircraft at Dover to distract from our actual invasion forces for D-Day). They had fake runways, fake buildings, a fake tower, fake fuel dumps, and fake aircraft in fake revetments. But British Intelligence (for once not necessarily an oxymoron) was onto them, and the day after they finished the airfield, a lone Lancaster bomber appeared in the sky above, and dropped. . . a balsa-wood bomb.