I posted this a while back but since there are new people here and it's been a while longer I thought I'd post it again for those who still want to do something to honor his memory but don't know what to do.
If could make a suggestion for those of you who are mourning but don't know exactly what to do. This might sound appealing to you.
Caring and tending for something that embodies someone you've lost is a really good way to cope with loss and helps with the grieving process. Plants are extremely therapeutic and healing. Specifically tending to and growing a plant is simply a good thing, it is constantly filtering air and so much more.
Try going to the store and picking out a plant that you think Mr Iwata would like or that you think embodies him or that just seems special to you. Find a special spot in your yard (or in a pot on a windowsill) and plant it in memory of him. Take care of it and depending on what you planted it could last for years, it could cover the ground for you to lay on with your Gameboy or it could tower over you and provide shelter for you as a tree for you and your kids to play under. It could be a cactus plant that would last the rest of your life or a flower that blooms only at night. If you live in the right climate you could even plant a banana tree.
I am a community garden manager and I would be willing to help anyone with this as best as I can. Specifically with what soil to use for what plant and you can PM me if you ever have any problems or questions now and in the future and I will try to help you as best as I can.
Take pictures of what you did and PM them to me and I will put a thread together in the future. Maybe on the anniversary of his passing next year. I think that would be nice.
I think I'm going to follow this advice this weekend. I suspect I may be PMiing you for advice on how to proceed. I'm still having a hard time dealing with this and I find myself tearing up at random times throughout the day. This is especially troublesome having recently started a new job, but thankfully I've managed to keep it together at work. I just feel so empty. I've been struggling for the last few days to write down my thoughts, but they just won't come. I really liked your suggestion though, and I think it will help.