Hmmm, Toy Camera in Japanese certainly doesn't have a negative connotation... it is in fact that kind of aesthetic that is luring a lot of people (not just young) to LOMO and other quirky cameras (Holgas, Smenas, etc.). Instead of using a name that seems to limited it to a particular brand (LOMO), I wouldn't know of a better heading to put those under... Cheapo? Hipster?