Try Paper Smooches. This is a local company, I met the lady that owns it an CKC last year and bought some of her stamps, they are nice quality. They're firm, so I have less trouble with getting ink in the "empty spaces" if that makes sense.
If you search school there are some others with rulers and such (I have the set called Smarty Pants - it has a ruler, globe, stack of books, etc.)
hmm, now that's a tough one - I can see more "vintage" items -so you can find typewriters and ink pens, but modern stuff like computers LOL - just doesn't seem to be the thing right now... you should contact a company and "sell" them your idea LOL - "hey we wanna scrap life NOW"