I used these to make "COFFEE FILTER FACE MASKS". Loop a rubber band around one of the clip's wires Fold 3 sides of a coffee filter Clip 2 side folds; with the 3rd fold on top for your nose Wrap rubber bands around your ears. Replace filter as needed!
These are the perfect size to keep your Lionel "O" gauge FasTrack from separating during use. Simply clip on the center portion of the back of tracks where they connect together. No more track separation!