As an expert cable maker, I can tell you that a standard 3.5 mm plug is probably the most tedious to solder, because typically they’re very small. For starters, the connector barrel won’t accept a standard-sized mic cable like linked above.
The only exception, and the only 3.5 worth buying if making your own cable, is the Canare F11 (TS) and F12 (TRS), both of which have barrels the same size as a standard ¼” plug. Canare had the good sense to figure out that just because the business (plug) end is tiny, that doesn’t mean the barrel has to be, too.
Regards,
Wayne A. Pflughaupt