Hi TIL1010,
Completely agree, these touching moments are great to remember him by (as we can capture these on camera for the funeral/wake) but also are a momentary shot of support for us all who are grieving.
As for permanent reminders, yes something that would benefit the environment, the community or something for the charity. So far we have a JustGiving page, but something bigger to raise awareness would be great... you’ve definitely put some ideas in my head for sure!