I don't know anything about those old Doodle bugs except they look more like a scooter with bicycle handle bars. lol. . You can search the photo section for some pictures. I'm not really sure who to refer you to either.
Yes I do make seats. The seat that OldMiniBikes sells for 46.00 is very nice. It is a 19" seat and looks almost like the doodle bug seat. I can't even come close to that price. Most of my seats are in the 85.00 range unless it is a real small seat. Thank you