I think my most ridiculous bodge to date was about 4 years ago when I was rushing to get a bike built in time for the DJ ride. Was a full on donor bike, the frame was cracked all over etc. The only part that I couldn't seem to source was a set of mod 4 bolt forks.
However,
A good mate Darren had purchased all of revell's remaining stock, and he had shit loads of 26" forks... I think you can tell where this is going.
Fair bit of measuring later I cut a small section out of the bottom of both legs and got them welded back together from another mate. Rode them for 2 weeks with absolutely no issues, they're still about somewhere.