Bad Rap does a lot of good programs to help educate pit bull owners and the public. Last December they asked for good strong collars and leashes to give out to the many owners of bullies who show up at the free shot clinics with their dogs on a chain or string.
It's a good program and I sent them about 28 strong collars and 4 leashes back then. I got lucky and found some good buckle collars at Big Lots for only $2 each. But I did not find many leashes.
Now they can use leashes:
http://www.badrap.org/rescue/adoptions.cfm
So if anyone has some good strong leashes to send to Bad Rap, I am sure they can use them!
Remember the PO has a "Flat Rate" box that ships for $8 no matter what the weight is. You just have to use their special box which is about 12" by 9" by 6", it holds a lot! I got all my 28 collars and 4 leashes in one last time and I could have fit quite a few more in.

I will certainly be keeping my eye open for cheap but sturdy leashes! I will also ask my local pet stores for any on sale.