*hugs* I'm sorry. I guess and advice I could say to you for the future is dedicate a desk, table, or even a file cabinet dedicated to just your art stuff. you can keep it in the drawers and on top of the cabinet or desk. Or if you like being on the couch, dedicate the coffee table as your art storage place.

I know you're a smart fox and things just happen. Me and my room mate misplaced a book bag that we use to hold speakers and a MP3 player. We have no clue where it is, like it just disappeared. Thing is, we didn't have a dedicated place to keep it like maybe on a chair or the corner of the living room.

I hope you find them, I'm sure you will. It's probably in the last place you would even think it could be like the garage, bathroom, or maybe had an absent minded moment and put it in the refrigerator while picking up that carton of milk. :p