The jockey wheel, one of the metal washers & the bolt from my Cimarron's derailleur that exploded on a night time ride 2 days previous. Rolling down the same hill, on a different bike in the daylight and there it was, right next to a crack pipe, in the debris on the edge of the bike lane, at the curb. I pocketed the pieces I could find, couldn't find the second washer and decided to leave the crackpipe