There isn't, but it is an interesting suggestion. I think it should be up to itch.io to add a shopping basket option, because it's hard to guess what Bundle may someone want.
You see, there are a few things to consider:
- Do I wait to release all my Ucogi Games first?
- Do I include Wild West Bimbos? It's not part of Ucogi's timeline.
- Do I include Orphanarium? It has no adult content, which is something that you may not want to pay for.