How to Make Boondoggle Lanyard Keychains DIY Tutorial! Boondoggle lanyards are synonymous with Summer! The plastic cord, the bright colors, the possibilities for bracelets boondoggle keychains. Learn how to make your own boondoggle keychains using plastic lacing cord for the perfect Summer craft! Oh my goodness you guys. I love Boondoggle! I was pretty involved in a little business venture around the age of 10 making keychains. I would buy boondoggle lace at the store and sell it by the yard on the playground at elementary school. I sold it by the yard so kids could make their own boondoggle keychains. I can't remember selling actual finished product though, because the real fun is in the making them. Some people call these boondoggle keychains scoubidou's, craft lace, plastic cord, color lanyard string kit, plastic weaving, scoobies, plastic lacing cord, gimps, gymps, gimp string, plastic lany...