I need to try this one

The mentos and coke thing is a reaction between the carbonation and the rough surface of the mentos. The water would dissolve the surface rather quickly, even in ideal scenarios, and as you melt the ice, you wouldn't be able to re-expose the surface fast enough for a meaningful reaction. Just all around an impractical plan.

If I remember right from a video back when mentos and Coke was all the rage, it wasn't just the texture of the mentos but there was also a chemical reaction in the combination of the two is what led to the violent reaction.
- "The eruption is caused by a physical reaction, rather than any chemical reaction. " https://en.m.wikipedia.org/wiki/Soda_geyser
- Would you be able to find the video? I had never heard of this, and can't imagine what "chemical reaction" could occur beyond the carbon dioxide simply coming out of solution.

That wouldn't work, the water would change the texture of the mentos before the soda hits it.

Even if it didn't change the texture, it wouldn't be a sudden explosion, but a slow release. The ice would melt off, slowly exposing the surface of the Mentos. To get the explosion they want you have to throw the Mentos in quickly.
- What if you had piece of ice with an air cavity where the Mentos is placed, then sealed in? I think that might work, bit it’s certainly tricky to set up.
Ok ok, plan B then:

We freeze the end of a rope in ice that they unknowingly throw in their drink. The other end of the rope holds a bucket of water above the chair they sit in. Once the ice melts, the rope will slip out and the water will come down on them. They will never know what happened!
- Put two ends of a cable under that person's chair, once water comes down it will close the circuit, which will in turn cause a piano to fall on their head!
- Plan C. We just throw the coke in their face!! PRANK!
Smh soda needs to get on board and stop being a little bitch with its soda-tongue pickiness. Try something new, soda.
- Who hurt you?
- I did

They’ll spill in my apartment, don’t they? Or do you regularly gift away ice cubes?

It’s actually a self-prank
- The real prankster is OP
People drink soda other places than indoors.
- Hwat is this so called “other place” that’s not indoors?

Would that even work? As the ice melts, only a small part of the mentos would be exposed, with a gradually increasing surface area. But I'd expected it only works because of the whole surface being suddenly exposed.

I'm more wondering how you freeze them all so without dissolving.
- Quickly.
- Perhaps dip them first in a simple syrup to buy a little time, then start with very chilled water, add the mentos, then freeze quickly? I have doubts about the whole affair though.
No. As the soda would lose most of the carbonation pouring it into the glass
- Poor it along the side of the glass, you animal.
Well you just trick them into microwaving their soda!

Hah! Joke's on you. I drink that shit fast and swallow the ice cubes whole.

Oh no, I'm burping so hard, you guise...

https://youtu.be/VaqdQhuvPi8?t=8
- *Burps a fireball*
  
  Mmm, spicy!

Why the fuck is there a disk in my ice cube?

I have friends that would ask the same question in the same confused tone, and I love it

am I the only one who drinks things too fast for this to work

So how do you freeze them?

Would they even still have that wonderful property after freezing?

Step one: have fiends