There are a number of chinese websites offering cheap SOIC clips, the most widely known is probably Alibaba/Aliexpress: http://www.aliexpress.com/wholesale?catId=0&initiative_id=&SearchTex...
These are certainly much cheaper than the expensive ones available in the "west" - though I don't know if the quality is adequate. Should you order some it would probably be interesting to give feedback on that.
With those cheap SOIC clips with wires you might need to replace or at least make the wires shorter to be able to read and write the flash chips reliably. I use some of the cheap SOIC8 clips and they work quite well with better and shorter wires.
Regards Felix