6 people who have passed away and want some way of incorporating them as a remembrance

We are getting married in November this year and I have just started to look into the more detailed parts of the wedding. Between me and my partner, we have 6 people who have passed away who we would of loved to have been there on our big day, and wanted some way of incorporating them into it somehow as a remembrance to them and to show everyone they are in our thoughts. Has anyone got any ideas of how we could do that, or has anyone been stuck in a similar situation what did you end up doing? Thank you in advance!