intrafamilial with a twist question

[Singleshot 7369]

Have not seen this addressed. Wife and met at 19 now we are 57, married for 32 years now. Never officially adopted the kids, when we met kids were 11 months the other 2 years old. No such thing in MY vocabulary as step children, Kids are Kids circumstances are not there fault. My son legally changed his last name when he was in his 20's & my daughter now married with her husband's last name. So now I am wanting to start passing on to them & my grandchildren. Some of them I've had since I was a young teen I got from my dad (step). The first one I got for my 9th birthday. Was raised around guns and had gun safety pounded into me at a very young age & did the same with mine. SO what do I do about passing them on while I'm still above dirt?