Modifications and "upgrades" to this laser that can be done with low cost including mounting feet and a custom spoil board with layout grid.

3D printed files can be found here:
Sculpfun S9 mounting feet: https://www.thingiverse.com/thing:517...
Sculpfun S9 Focus cylinder holder: https://www.thingiverse.com/thing:519...

Layout grid: https://www.thingiverse.com/thing:491...

Cloudray Laser Safety Glasses: https://amzn.to/3h0fW6P

SCULPFUN S9 5.5W Laser Engraver
$205 after coupon: NNNROGERS9
https://www.geekbuying.com/item/Sculp...

The variety of items Geekbuying has is also worth a look.
More deals can be found in their USA Warehouse.
https://www.geekbuying.com/warehouse/...