Off the top of my head (which no doubt is not where memories are stored) , compared to the hurricanes
Blues have USA, Japan, not Ireland, South Africa, Australia, Italy, scotland
Chiefs have Canada, Japan, France, not South Africa, scotland, Wales, England, italy
Highlanders have Japan, not Wales, Ireland, South africa, italy
Crusaders have Japan, not Wales, Tonga?, Italy, South Africa, Australia, ireland
So, I can make a 15 out of the hurricanes, chiefs, blues
1. Toby smith (aus)
2. Sean fitzpatrick (nz)
3. Ben tameifuna (Tonga)
4. Tyler ardron (canada)
5. Api naevo (fiji)
6. Tony Lambourn (USA)
7. Martin Leslie (Scotland)
8. Michael leitch (Japan)
9. Isaac boss (Ireland)
10. Piers francis (england)
11. Lome faatau (samoa.)
12. Hadleigh parkes (Wales)
13. Tony marsh (france)
14. Kobus van wyk (sa)
15. Jayden Hayward (Italy)
It is notable that all of the above have played for their listed nation in an international match at some level, and that only 5 or maybe 6 of them, including Sean fitzpatrick, were born in the listed nation.