At walmart and Zellers, they have the train toys, where each character has their own part of the train, singing plush dolls, which were a steal! I think a lot of wal-marts have them priced wrong. I bought a singing/talking Toodee marked at $6.94 and rang through at $19.99... Obviously we got the cheaper price. At Zellers they have the silly heads that vibrate and sing ($14.99). That's all I've seen so far. You can also check Ebay.. they have TONS of stuff on there! Some stuff is reasonable, others not so much.
At Toys R Us in the states, they have a Dance Time Brobee, which dances and sings.. Looks pretty cool!