Do you mean bomex whale tail? Border don't make a whale tail ;)
There's the kei office "whale tail" style which is a smaller version and is more subtle. Some company overseas does the replica for this. Check out Rico's car, he has one.
A bit of general knowledge as well, the smaller tom's wing or so called "duck bill" is a secondary wing to suit the bigger toms arched wing, making the toms wings a 2 piece item.
There's something not quite right about the duck bill by itself imo, its too small and kinda looks outta place.
And there's always the Gen3 and gen 5 wings which look great.