I'm posting tiles I've made for my game as well as anything else I end up making that works for MV along the way :)
I am by no means perfect or an expert, and I'm still getting to grips with the RPG maker style!
Licensing:
1. If you own a copy of MV you are free to use these on non-commercial games
2. If anything on this thread is something I do not have copyright for (i.e. fanart sprites/tiles) it's up to the owners of that copyright. I do make fanart and such for characters, and I enjoy making mini-pixel versions of existing posters.
3. Commercial games will require a commercial licence, but I will update with that once I feel I have made enough stuff for it to be worth paying for.
Modern Japanese Tiles

Gacha Machine
UFO Catcher
(I used existing sprite pieces for this)
Toilet sign
Japanese style toilet
Till