The first three items are real US banknotes with a photo of Bob Dylan pasted on them. They can be found on the Internet:
20£, 'Bank Of Dylan'. Though sold with a certicate of authenticity, the signature looks more than suspect. 
Special Dylan banknote for the Azkena Rock Festival, Spain, where Bob Dylan performed on 26 June 2010.
The Dylan connection is the title of this artwork: "Money Does Not Talk, It Swears," line from It's Alright, Ma (I'm Only Bleeding). Source: https://imgur.com/gallery/0FOwHuV