Keeping hundreds of thousands of worms is pretty practical. Commercial mealworm growers are storing at least that many. You could easily keep a couple thousand

Keeping hundreds of thousands of worms is pretty practical. Commercial mealworm growers are storing at least that many. You could easily keep a couple thousand at home. The real barrier to styrofoam recycling is transporting it (it takes up so much volume) and cleaning off food from it. This can be easily done at home and requires no washing of the styrofoam so it eliminates both of those issues.