Which waterproof, luminous marker should I use to name and label dark flip-flops? Should the marker cover the dark background? Sauna?

It's about visits to the sauna. Which pen is best for marking dark flip-flops with a name? The pen should be waterproof and luminous or cover the dark background with a light color. Preferably, the name or marking should be on the inside of the flap.

I know it might sound ridiculous, but how do you mark where you want to drill in wood?

Imagine I want to build a frame: two wooden boards on the left and right, with the board on top. I don't really like using screws, especially when the angles are visible in the corners. That doesn't look good in my opinion. So I'd rather use wooden dowels and wood glue. Now I'm wondering how…

Flip-flops (e.g., Adidas) in a sauna? What's the best way to mark and label them? For the sauna?

Are you talking about a visit to a sauna? After the steam bath, someone was wearing my flip-flops. When I asked the person about it, they claimed that they were her flip-flops and asked if they were marked in any way (e.g. name, characteristic or other evidence). The unfortunate thing is that they were Adidas…

Going to the cinema as Art the Clown for TERRIFIER 3. Is it allowed?

Hello… I have a question. Are you allowed to go to the horror film Terrifier 3 dressed as Art the Clown for Halloween? I just want to create a scary atmosphere and so I ordered this mask In my opinion, she looks really cool. Especially in this picture. I'd obviously take off the mask briefly…