>>96127828
magnet baron makes sturdy strong magnetic flight rods specifically for the kharadron ships and balloon boy infantry, though they tack an extra $100 onto your armies price tag all said and done (like $15 per ship last i checked, and about that much per 3 balloon boys)

otherwise mounting some large trees or rocks to the base and anchoring the boat onto them with wire is another option. some people have also gone for more creative solutions