Made my first official walk into the beans yesterday, ending up finding a couple items before I found my plane. One was the canopy for Jeff's big glider, and the other was a blue and yellow hatch of some kind. I have attached a photo. The reverse of the part is white foam and has a couple magnets embedded in it. I have placed the hatch in the lost and found area (the shelf under the table with all the old batteries etc.) with a handful of gravel in it to keep it from blowing away. If it is your yours, please return the gravel to parking lot when you retrieve it.
Mike K.
Good job Mike. :)