There is a good-natured little group I belong to called Geysers. There are no dues, nor fund-raisers - nothing to do with money. Just a group from the heart. I've shared the draft of a little charter a couple of times in a couple of older blogs. There's an addendum - a list of thoughts to loosely consider - that is added to now and again. Here are the ones I remember at the moment:

No martyrs.
Everything in moderation and nothing in moderation.
Just because it looks like a hat doesn't mean it's a hat.
Don't forget to pass the relay stick.
Being late is no crime.
In space there is no up nor down.
Leave no one behind.
Leave one person behind.
Muddle through.