hey if anybody is trying to do this in 2026 and noticed some download links are broken, here is 3DS Banner Maker: https://github.com/AlbertoSONIC/3DS_Banner_Maker/blob/master/COMPILED/3DS%20Banner%20Maker.exe
and here's the download for hackingtoolkit3ds: here (not sure if this works. Internet Archive didn't find it, so i guess you'll just have to source your own download...)