Multiple WAN IPs

[winampus]

I was wondering if there is anyone out there looking for having multiple WAN IPs on their Asuswrt-merlin powered routers ?

Update:
Since I haven't got any feedback on this I can share my setup and if anyone interested I will clean my scripts an share the bundle...

So... Little bit of background info... I don't know what are most ISP offering in term of public IP's per customer, but mine offers up to 5 IP's trough DHCP. Of course I can opt to pay for 1 static IP also assigned trough dhcp, but that didn't help me too much.. so need to come up with something else,
Owning as asuswrt router, running merlins's build... so linux based... I've got the idea of using macvlan.
macvlan is similar to bridging, with the slight difference that you link macvlan devices to a physical interface and assigning different MAC addresses to them...
This setup gave me 1 WAN physical interface (eth0) and several macvlan ( let's call them mac0, mac1, mac2...) all of them with a different MAC address.
In my current setup i have 5 public IP's (1 WAN and 4 macvlan devices) each of them NAT-ed to different hosts on the LAN...