This time in the Mysterious Case of the Missing Contraceptive Implants (thanks to Daily Mail UK for reporting). Seems that those implants just like to float away from the original implant spot. Never to be seen again (sort of).
To refresh your memory, Merck also manufactures the following:
MMR Vaccine which contains fetal cell matter.
Gardasil Vaccine which has been known to cause strokes.
Nuvaring contraceptive which has been known to cause blood clots and heart attack.