These are some EB Cobalts I bought a little while ago. I had them on my P-Bass for five minutes before I decided they weren't what I was after.
Yours for 7 bucks shipped, CONUS - basically, free plus shipping via priority mail
A few caveats - they went string-through on my p-bass, so there's an extra "bend" near the ball end of the string. If this is a deal-breaker, I understand. Just be aware before buying!
Here are pictures showing that "bend"
EDIT - The ends were trimmed a bit to fit on my fender - if you have a 2x2 head stock, the D string might be short.