^ Yeah, Spidey's costume is clearly very professionally and painstakingly made. But the point I was making is that before they made the movie, lots of people said that they ought to give him the black costume, that the red & blue look would look silly onscreen. But it didn't, IMHO. As for the feasibility of an impoverished teen making that, well, I suppose suspension of disbelief has to kick in.
The Spider-suit was also one of the few recent ones that didn't have body armour or the like, though IIRC it had padding in places to accentuate Maguire's musculature, as well as a helmet to give more of a pronounced shape to his head.