This is a simple 4 button macro pad that runs on an Arduino Pro Micro, the case is 3D printed and the entire project is doable for under $20CAD.
Each button is mappable to a keystroke or combination of keystrokes. by Default, they are mapped to CTRL+ALT+DEL, Windows Calculator, Xbox Game Bar and a string of text.
The case prints in 2 parts, the base has cutouts for both the pro micro as well as 2 washers for weight. The washers arent needed, but might be helpful if your pushbuttons are stiff and require more force to push on.
The magnets can be superglued into their holes, be careful to not reverse the polarity.
The Pro micro can be hot glued or 3M Taped onto the platform and aligned with the cutout for the USB Port.
Complete writeup and Guide available here: https://github.com/potatoworld/ArcadeMacros
The author marked this model as their own original creation.