Some components of models, artworks, and other things are found from sources on the internet.
An iMac G3 (post-facelift) model was derived and changed from a model by Martin Lonnemann here, released as CC BY 4.0.
A low-polygon model of a head and neck was derived and cleaned up mildly from a model by ComputerCat here, released as CC BY 4.0.
A higher polygon iMac G3 (pre-facelift) model was shared by blenderartists.org user vcarlos here. A derivative may be used when needed.
The profile picture of a drawing of a man in a black and yellow jacket holding a flower was drawn by Xymphonee (same username on Discord and Twitter).
The animated GIF of every iMac G3 color variation used in multiple ways, including as an emote on Twitch, was derived from a page on 512pixels.net, released as CC BY-SA 4.0. You may use my derived versions as you wish according to that license.