Friday, I put in a request with Team Cymru for a BGP feed for bogons. I spend some time on Friday configuring a couple of CentOS 5 VMs with an old-ass Quagga to make sure I got the config right. A few moments ago, they fired up my BGP session and I am happy to report that all is well! Infact...check this out!
projectstfu ~ # ip -4 route list | wc -l && ip -6 route list | wc -l
I am also redistributing all of these null-routed bogons to my various OpenWRT nodes using OSPF/OSPFv3.