This is who I have bought from a few times. They work really well. But not always in stock. He sells the regular connections and the Tender connections.
https://www.ebay.com/itm/Thomas-Tank-Eng...1566492924
I also sell them for people in New Zealand though Trademe.
https://www.ebay.com/itm/Thomas-Tank-Eng...1566492924
I also sell them for people in New Zealand though Trademe.