For some longer rides our kids get tired on their own bikes, so to have the option of them riding their own bikes but jumping onto the wagon I knocked up this, using the axle packaging adapter that came in the boxing. Just bolted through the plastic. As it's just pulling (kid not on bike) the plastic seems more than robust. The cable tires were just incase anything came loose.
It does obscure the rear light even without bike attached though.
Really easy thing to do for an extra option on bike rides. New here so maybe this has already been done?