When I recently interviewed Sass Brown, I found Gibbous Fashions on EcoFashion Talk. Gibbous describes themselves as a "miniature fashion house" that's committed to "harvesting the lost trinkets of the.
Maybe something like this to combine a 'fairy' skirt and a tool belt. Pick out some complimentary colors and start ripping, sewing, using office brads or even gluing. There is no wrong way to make a costume.