Hi, I have two Big Bus Tours Paris - Deluxe Tickets for sale that I was unable to use, they can be used anytime up until August 18th. These are 2-day tickets for two bus routes including a 1 hour Seine cruise. I paid $100 for both and would take $80 OBO.
For more info on the ticket see here:
https://www.bigbustours.com/en/paris/deluxe-paris-tour-ticket/Please let me know if you have any interest in purchasing these.