For Skullcandy Ink'd Microphone that don't fall out use BudLoks™ - Far End Gear® Products for outdoor enthusiasts - earbuds, earphones, and earbud sport grips.
Skullcandy Ink'd 2.0 Earbuds with Microphone and Remote
Skullcandy INK'D 2 Earbud Headphones S2IKGY-385 B&H Photo Video
Skullcandy Ink'D 2.0 In-Ear Wired Headphones with In-Line Mic (Black) - Walmart.com
BRAND NEW IN PACKAGE SKULLCANDY INK'D EARBUDS W/ INLINE MIC & REMOTE for Sale in Homewood, IL - OfferUp
Skullcandy INK'D Headphones w/Mic | University of Hawai'i Honolulu Bookstore
Skullcandy Ink'd 2 Earbuds w/ Microphone Lime Black Yellow Mic in-ear headphones | eBay