I'm listing them on ebay right now. They're selling faster than I can list them, so I'm not sure how long they'll be available.

The new cradles will fit the larger Tamagotchis:

Tamagotchi Connection (US)
Tamagotchi Connexion (UK)
Tamagotchi Plus (Jap)
Keitai Tamagotchi (Jap)
and also...
Japanese Osutchi & Mesutchi mating tamas

Keep your eye on my auctions or feel free to email me for information.
My eBay user ID isTinkerville

Beware of lesser quality lookalikes made of kids craft clay!