My son got a metal SR-71 Blackbird Pull-Back toy from the Smithsonian Air and Space gift shop, I've since seen the toy at beach shops and Alibabba.   Tonight he stepped on it and broke off the front landing gear so I printed a direct replacement.Printed 2 shells fork face down at 8% infill.  Thoroughly commented OpenSCAD files included if you feel the need to modifyHoles in forks are much smaller than the original axle.  Use the self tapping screw that held the original landing gear in place to roughly widen the holes, this allow the axle to firms stay in place after it's pressed back in