I've been designing around these ear plugs for the iAm project. I decided after I modeled them to release them on GRABCAD because there are currently only two ear plug models on there. I think this file is valuable because I've designed it specifically for the Tasco Tri-Grip Reusable Ear Plug that I've been buying through the Ear Plug Superstore. I like it when models I find online are specific to actual products available for purchase.
Below are images documenting the creation of the ear plug.