>> bottom line, we keep it in america and it's pretty cool. >> reporter: pretty cool, and so is the demonstration. starts with a gum ball, right at the top. so, santa's elves, don't fret. "world news" viewers answering the call, helping santa find, this year, american toys. so, who knew that the slinky was made right here in america? started back in the '40s, diane, moved to pennsylvania in 1964. so, i bought a few for my nieces and nephew. and there's one for you to take home. >> thank you. merry christmas to me. >> reporter: the ideas keep coming in, by the way. >> that's right, so, please, send yours to our constantly growing list, abcnews.com/worldnews. and we thank you for watching. "nightline" is along later. and we want to leave you tonight with a sign of renewal. the new skyscraper rising on the site of the old world trade center, aglou in holiday lights. thanks to affiliate wabc, right here in new york. ight to all of youall of you.