Most of our childhoods have already been ruined by needles at the doctor's office, but one Japanese inventor thinks he's come up with the perfect pain-free, needle-free injection to soothe tomorrow's lucky kids. Called Mother's Kiss, the device would theoretically eliminate the need for needles and even existing needle-free devices, which use gas or air pressure to deliver drugs (think primitive Dr. Crusher). Instead, the seemingly simple device uses tiny plastic ampules to deliver life-saving meds to the needle-averse. National Geographic has a video, but it doesn't embed, so check the link for more on inventor Yoshoi Oyama and Mother's Kiss. [National Geographic]