Do yourself a favour and buy these: https://www.amazon.ca/gp/product/B06XZ1PCKK/ref=oh_aui_detailpage_o03_s00?ie=UTF8&th=1
I have some and love them. I refuse to play mario party without them. The only downside is you have to take the joy-cons out for vertical games.
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Edit: buy these ones and not the amazon basics ones - they suck.
You can only use one Joy-Con per player, as the other person said. If you want them to feel more comfortable, maybe try the Surge Grips on Amazon, or another kind of the same thing.
EDIT: On second thought, the FASTSNAIL Grips look a bit more comfortable.
Well if you use the Dolphin emulator made for Mario Party Netplay there is a Gecko Code that makes so that capsules are free to use on yourself and you can also use this mod which turns the capsule machines into shops where you can choose what capsule to buy at a price
The probability of getting at least 17 with 3 dice ranging from 1 to 10 is 50%
before anyone asks: yes, this is real. (source: https://play.google.com/store/apps/details?id=com.bbtv.fernanfloogames&hl=en&gl=US)
I use OBS to record.
And I use this capture card to get the data onto OBS: