I acquired a few old shapes down in St Augustine through college, all of which I left there back in 09. I still think about them and now that I'm up in Rhode Island I wish I brought them along, however a few months back I snagged a picture off some site of one of the guys I knew in college riding a big old nose rider I found behind a house I was doing some work for. He Said one of the kids I lived with let him take it after a party or something. It made me happy to see that board still on its journey, who knows how many people have ridden it since. My advice, put the word out there that you are looking for them, if they got em still just ask to ride them again. If not, oh well. If anyone ever stashed a board with me I wouldn't think twice about riding it, I would use it assuming it was my own, but I would never let it go.
Redman...haven't heard his name in a long while RIP. He shaped some of my favorite boards years ago. Wish I had the last one I sold. I caught Rodanthe on an epic post-storm day and some long hair hippy looking guy that was sitting on the beach all morning catches up with me as I got out of the water. He was asking all kinds of questions about my opinions on the board. We had a pretty long conversation and he finished with a thank you for the feedback on one of his boards. Pretty cool guy.
so, if you want to be technical about it, leaving your boards with someone else to take care of them is called a "bailment" in the law. You are the bailor, and he/she/it is the bailee. EVery state has its own law on how long you have to take action to recover property that you put in bailment with a bailee. But your biggest problem is that you probably don't really have an enforceable bailment contract - a contract requires that you gave something up in exchange for the promise the other guy made -- so if you just said "hey, is it OK if I leave my board at your house," and they said yes, then you don't have a contract. If you said "I'll buy you a beer if you let me leave my board here," or you said "If you let me leave my board here you can ride it . . . once . . . ." You have a contract. WIthout that, the other person was just doing you a favor. Of course, if they still have the board, and you didn't make a gift of it, it's still yours and you should be able to get it back . . . if you can do it without committing trespass . . . or mayhem! The problem with bailments is the assumption that you "bailed."
update... some are gone ... some have been handed out to others. No worries. I generally have good board karma having given away more boards than I can count over the last 17 years. I don't mind as long as someone enjoys it. It all comes back via a friends garage find, used surfboard section in a shop, or in a dumpster. However 3 are still in existence right where I left them and 1 of them I asked about getting back as it hadn't even been ridden since I left it there lightly used. Friend: "Sure. So when are you gonna pick up the board? Heading up this way soon?" Me: "uhhh.... next summer? You know.... if its not a problem..." Friend: "Dang!" Dang indeed.