I found three similar wigs
Not the exact same, but similar.
- This one is more of a blonde color, but I think it fits the style of the wig you want: http://cgi.ebay.com/2-clip-CURLY-YELLOW-BLONDE-PONYTAILS-COSPLAY-WIG-set-/310305798020?pt=U S_CSA_MWA_Wigs_Extensions&hash=item483faab784

- Also blonde, but still cute :D http://cgi.ebay.com/2-Clip-Elizabeth-Blonde-Ponytails-Cosplay-Wig-C04-/260774035863?pt=LH_D efaultDomain_0&hash=item3cb7580197

- This one looks like it's closest to the shade you want http://cgi.ebay.com/2-Clip-Blonde-Medium-Short-Wavy-Ponytail-Cosplay-Wig-/280543909207?pt=U S_CSA_MWA_Wigs_Extensions&hash=item4151b85557
