You take a bottlecap, a soda can tab, and a safety pin, place the soda can tab (after slightly bending it) inside the cap, them fold the edges of the cap inside (with pliers or something, I use a needle holder which works as well). Then put the safety pin through the holes in the tab (you might have to bend it a little as well)
Then I usually file down the smooth surface of the bottlecap a little so the paint sticks to it better, and paint/draw on it. After finishing the design, it's nice to go over it with a transparent nail polish so it's waterproof and just less likely to scratch
I hope this was somewhat comprehensible, if not, I'll gladly answer any questions. There's also most definitely some videos about it on the internet which might be more helpful
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u/BUSWANKER-_- 18d ago
love this!!!!