Continuing on with the ATIS theme, I have two artifacts from the ride itself, one internal and one external. Here is the internal piece, a miniaturized Atomobile rescued from the destruction of the Mighty Microscope. There are a few of these floating around, but I've never seen a duplicate configuration of riders. This one is a father and son, but I've seen a mother and daughter, a father and daughter, and at least one mid-aged man riding alone. This came out of an auction a few years back. It's in pretty nice shape, and I had a stand and case custom-built for it.
My external piece is a big silver "U" from the ride sign. There were 4 U's on the sign (one in "Adventures" and one in "Thru" on each side of the ride's two surrounding walls). That came from Disneyland collecting Hall-of-Famer Dug Miller a few years back. I once saw it in his apartment and swore to myself that it would be mine someday. When he put it up for sale, I snagged it. Sometimes dreams do come true. I will try to snap a photo of it if you're interested.