Support for a Katana with personalized logo. I will upload the same support as the pictures, with the logo of "Demon Slayer". To put your personalized logo, upload the file "logo_base" in Tinkercad and put the logo you want with a 1 mm of height.

0.2-0.3 for the "main_base" and "support_katana", depend on how definite you want the piece. Also, I recommend an infill of 6-10% with a cubic pattern.
0.2 for the "logo_base" and for the screws is great. Also, the pattern of infill and the % you normally use.

Fixed with extra strong double-sided tape.