After 3 months of constant testing and improving, I am finally happy to share this final revision of my Oskie Micro frame with the community. It's so tough I could never damage one during testing.
Here is a build example: https://oscarliang.com/brushed-micro-quad-build-srp8-25mw/
Motor: 8.5mm Brushed
FC: anything you can stick on the frame with double sided tape, I tried Multiflite, Beef board, Lulfro board and quanum pico (micro scisky) all work great.
FPV setup: anything you can stick on it, I tried FX798T, Banggood 600TVL + AltitudeRC VTX, and Hyperion Mini FPV - All work great!
For a full parts list check this out: https://oscarliang.com/brushed-micro-quad-parts-list/
If you don't have a 3D printer, I can print for this frame for you, with my Ultimaker 2+ with PolyMaker PolyMax filament for better strength and crash resistance, order from here: