What are /r/ScienceNcoolThings' favorite Products & Services?

From 3.5 billion Reddit comments

I think it could be done carefully enough…

https://www.amazon.com/Manual-Bottle-Capper-Brewing-Capper-2/dp/B07V6G6DVV/ref=mp_s_a_1_1?crid=19D21H1FDFOFC&keywords=beer+bottle+capper+for+home+brewing&qid=1658854245&sprefix=beer+bottle+capp%2Caps%2C160&sr=8-1

Ive seen cheap versions done with the raspberry pi but nothing that would meet that quality.

Like this: https://www.instructables.com/How-to-Make-a-Fan-POV-Display/

or this: https://www.youtube.com/watch?v=n6G-f529dTw&ab_channel=AlfaPixelCreative

Here a similar product (just search 3d hologram or 3d fan hologram): /dp/B077YD59RN/ref=asc_df_B077YD59RN/?tag=hyprod-20&linkCode=df0&hvadid=285924257721&hvpos=&hvnetw=g&hvrand=5312082222909161705&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9060351&hvtargid=pla-490279933622&psc=1