Anyone turning in wires, candy, or other stackables: when you go to the collector, you have less than 125 items in your pack. You should, of course, turn your stackables in one by one. However, be aware that you can very easily go over 125 items in your pack without realizing it, because the collector gives back one ticket per item turned in. When you're at 125, the item you're trying to turn in falls to the ground. I've already picked up a lot of wire and candy from near the collector and it's only been an hour or so since the shard came back up.