Samyang / Rokinon 135 accessories: flat panel, bahtinov mask, lens hood

This is a set of accessories for the Samyang / Rokinon 135 f/2 lens:

Extra meterials:
You will need some self-adhesive flocking material if you're not OK with the lens hood reflection
6 x M3x8 mm bolts
3x 4x2 mm n35 magnets for the flat base (https://www.aliexpress.com/item/1005010158692653.html)
3x 4x2 mm n35 magnets for the Bahtinov mask
3x 4x2 mm n35 magnets for the flat panel
Pay close attention to the polarity of the magnet!
1x 92 mm light diffusion panel (https://www.aliexpress.com/item/1005012060249805.html)
1x 90 mm EL circle panel (https://www.aliexpress.com/item/1005003881806567.html)

I've printed everything with the 333 PETG, 0.2 mm line height