HM3: Prize updates

You may recall that last year I exercised my executive privilege to revert a bunch of unclaimed contest prizes back to the community. You all came up with a ton of suggestions for those unused prizes, and voted on the ones you most wanted to see happen. Since then, some of those items have been done and some remain, while others have been chosen as prizes by new winners. I wanted to update everyone on the status of that ongoing effort, so here's the current list: