Don't know if this has been done before, but here it goes:
Challenge:
To get a decent straight shave set-up for as cheap as possible.
Has to produce a good shave.
Equipment:
Razor - made of anything (butter knife, real razor, bit of steel)
Strop
Honing / sharpening tools - eg. concrete footpath/sidewalk, cardboard
Shaving lubricant - oil, soap, whatever
Have fun!