Can bottle caps also play like this?

The main function of the bottle cap is to seal the bottle and prevent the liquid or substance inside from leaking or being contaminated. The bottle cap accounts for less than 10% of the whole bottle, and most people will not notice it, but is the bottle cap only for opening and closing the bottle?

The creativity of the brain is wide open, so that the small bottle cap still has infinite possibilities.

1. Vittel Refresh Cap "A bottle cap that can count down"
Every time it is tightened, it will count down for one hour. As soon as the time is up, a small flag will pop up on the bottle cap to remind you to drink water. Water is as important to the human body as fish, without which one cannot live. But you often forget to drink water when you are busy. Now you only need to open the bottle cap and tighten the cap again.
◎ YouTubehttps://www.youtube.com/watch?v=yyRgQJzILus

2. Coca Cola Friendly Twist "Build new friendships, open happiness"
Put the caps of the two bottles of Coke together and the concave and convex can be turned to open the caps, and the two can complete the task of opening the Coke together! Two strangers nod and smile at each other, and a friendship begins! !
◎ YouTubehttps://www.youtube.com/watch?v=ecSAUmSaC0E&t=4s

3. Japanese Suntory SUNTORY super cute cat bottle cap
The cat-shaped bottle cap is combined with super practical functions, including a medicine box, a glasses holder, a piggy bank, and even massage and high-five, so that the bottle cap is no longer just a bottle cap, but can be transformed into various gadgets, which is highly interactive and practical.
◎ YouTubehttps://twitter.com/suntory/status/1184261621016694785?s=12

4. Japanese plastic bottle measuring cup cap
To keep rice fresh, you can choose to store it in the refrigerator at low temperature. The reusable plastic bottle becomes the most suitable storage container. The design of combining the bottle cap with the measuring cup and funnel is both environmentally friendly and practical.
◎ YouTubehttps://www.youtube.com/watch?v=ylOQzlwTexI&t=4s

5. Led Bottle Cap (Firefly Bottle Cap Light) A creative product that makes PET bottles glow!
Combined with the bottle cap of the LED light, press the button, and the flashing light will have a magnifying effect when the light passes through the water, which becomes an alternative flashlight. Increase the safety of night sports and walking.
◎ YouTubehttps://www.youtube.com/watch?v=DELkY_lZZk4&t=2s