tiny wireless mouse with multiple buttons?

[ochhanz]

Hi everyone, does anyone know any very small wireless mouses that have at least 2 buttons + scroll + middle button and preferable extra mouse buttons? Also preferable a similar shape to a pen. (It is for a project so ergonomics can be ignored)

The only thing that comes somewhat close that I could find is this:
https://www.ebay.com/itm/Tiny-Mini-Wireless-Rechargeable-Mouse-for-PC-Notebook-Laptop-Computer-SF9009/253548511499?hash=item3b08ab410b:g:dDIAAOSwzrBas5Fd

Thanks for taking the time.