Never thought I would unbox a magnet bigger than my monster 6x2", but technology is evolving and I love following along.
Luckily, magnetportal.de was kind enough to donate the magnets featured in this video. They are not cheap! The biggest one alone contains around 3 kg of the rare earth metal neodymium.

Here's where you can find the magnets and a lot of smaller ones:
https://www.magnetportal.de/neodym-ma...
The website is German, but I have communicated with them in English and Chrome can translate the website to your language, so don't let it stop you.

FULL MUSIC CREDITS
Time codes: 0:00 + 12:08
Dark Times by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...
ISRC: USUAN1100747

Time codes: 0:43 + 8:16
Relaxing Piano Music by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...
ISRC: USUAN1500075

Time codes: 2:23 + 5:21
Echoes of Time v2 Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...
ISRC: USUAN1300030

Time code: 3:56
Phantasm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...
ISRC: USUAN1100113

Time code: 7:00
Monkeys Spinning Monkeys by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...
ISRC: USUAN1400011