What to do with leftover scrap heap solves?

When designing I often have many more good or plausible ideas than the limit of three. I get many more as I vote because I do mods while evaluating. What to do with all these leftovers? Seems a waste for EteRNA not to collect them for some use. Bet others have the same problem.

We need a scrap heap for collecting otherwise unsubmited/unused solves.