Below are Heddon Chugger, Chugger Junior and Tiny Chugger ads taken from Heddon catalogs. Thanks to the NFLCC for assisting with some images.

Heddon Chugger Junior (aka "Baby Chugger" 9520) ad that
first appeared in the 1951 Heddon Catalog
Heddon Chugger Spook (9540) ad that first appeared
in the 1938 Heddon Catalog
Heddon Tiny Chugger (335) ad that first appeared in the 1961 Heddon Catalog