I have a little habit. I like to collect lucky's small blue cup lids. I collect them and think to myself, I don't know how much such small cup lids will be thrown away every day. Is there any other possibility besides entering the garbage can.
By improvising design principles, it's interesting to assume that it can be used as a gadget. After analyzing its structural form, it is found that a small magnet embedded in a runway circle is actually a refrigerator magnet, and it can also be embedded in pushpin accessories to become a small pushpin.
Small cup lids can also have different possibilities.