Disney Infinity Fans

I saw a few toy boxes online where people had power disc content appearing in their game. Someone had Maximus on a Snow White level, I didn't own the disc itself but it appeared in my toy box. I've also seen Cruella's car and a few others appearing. I've tried doing the same but whenever I start my toy boxes they've disappeared so how is this possible? :/

That sounds like a glitch. There's been a few glitches toy boxes from the team that causes objects or packs to be available.

I haven't seen this yet. Which toyboxes?