I know you all are going to think I'm making this up, but I'm not.
My husband and I used to love to take Caribbean cruises. As his health was failing, we started talking about what we wanted to the kids to do after we were gone. We were sitting on the veranda of the cruise ship, looking over the beautiful water, and started talking about how we both felt so 'at home' there. We also felt that big funerals were too expensive, with that money better used elsewhere. (I have to add that our spirituality feels that the body is a container, and our souls will go on after our container stops working.)
So, agreed that whichever of us was the second to go would save the ashes of the first to go in a Folger's Coffee Can, and the kids would add the ashes of the second to go into that same can. Instead of spending a lot of money on a funeral, we have asked them to use our insurancr money to take a family cruise to the Caribbean (taking the Folger's can with our ashes), remember us fondly, and throw our ashes into the Caribbean.
I'm serious. My husband passed away four years ago, and while I haven't put his ashes in the Folger's coffee can yet, it is waiting out in the garage for us.
When we did our wills, our lawyer suggested we keep this request out of the document and just talk it over with the kids. He was afraid a judge would question our 'sound minds'.