But other small things can be within your baby's reach too like pen caps, water bottle lids, rings, earrings and coins. (littleremedies.com)
If you're someone who tends to lose pen caps a lot, a clickable pen is the answer. (geekwrapped.com)
Barcley needed anesthesia and a bronchoscope to remove the highlighter pen cap, but the standard anesthetic plan of placing a breathing tube into the windpipe was out of the question; it was already full of the highlighter cap. (amcny.org)