I'll list two. One that's easy, one that's harder than hell!!
1. Easy: Cameron Francis' stuffed. You can learn this on the Omega Mutation. I think it's on disc 2.
2. Hard: Daniel Garcia's White or Wheat. It's an amazing idea, but it's super hard. As close to juggling with cards as I've ever seen. This is on the Garcia Project. I also think this is disc two.