Not to spoil too much, but in the upcoming update you will already be able to get the first toy! Much more will be added as the game goes on! And yes, you will be able to use all of them on your desires!
Hmm it's hard to say, I'm trying to get it out as fast as possible. I want it to be done for next week, but I know that this is probably not possible, so I'd be counting with around 3 weeks.